import macros;macro ImportExpand(s:untyped):untyped = parseStmt($s[2])
# source: https://github.com/kemuniku/cplib/tree/main/src/cplib/tmpl/citrus.nim
ImportExpand "cplib/tmpl/citrus" <=== "when not declared CPLIB_TMPL_CITRUS:\n    const CPLIB_TMPL_CITRUS* = 1\n    {.warning[UnusedImport]: off.}\n    {.hint[XDeclaredButNotUsed]: off.}\n    import os\n    import algorithm\n    import sequtils\n    import tables\n    import macros\n    import std/math\n    import sets\n    import strutils\n    import strformat\n    import sugar\n    import streams\n    import deques\n    import bitops\n    import heapqueue\n    import options\n    import hashes\n    const MODINT998244353* = 998244353\n    const MODINT1000000007* = 1000000007\n    when not declared CPLIB_UTILS_CONSTANTS:\n        const CPLIB_UTILS_CONSTANTS* = 1\n        const INF32*: int32 = 100100111.int32\n        const INF64*: int = int(3300300300300300491)\n    \n    const INFL = INF64\n    type double* = float64\n    let readNext = iterator(getsChar: bool = false): string {.closure.} =\n        while true:\n            var si: string\n            try: si = stdin.readLine\n            except EOFError: yield \"\"\n            for s in si.split:\n                if getsChar:\n                    for i in 0..<s.len():\n                        yield s[i..i]\n                else:\n                    if s.isEmptyOrWhitespace: continue\n                    yield s\n    proc input*(t: typedesc[string]): string = readNext()\n    proc input*(t: typedesc[char]): char = readNext(true)[0]\n    proc input*(t: typedesc[int]): int = readNext().parseInt\n    proc input*(t: typedesc[float]): float = readNext().parseFloat\n    macro input*(t: typedesc, n: varargs[int]): untyped =\n        var repStr = \"\"\n        for arg in n:\n            repStr &= &\"({arg.repr}).newSeqWith \"\n        parseExpr(&\"{repStr}input({t})\")\n    macro input*(ts: varargs[auto]): untyped =\n        var tupStr = \"\"\n        for t in ts:\n            tupStr &= &\"input({t.repr}),\"\n        parseExpr(&\"({tupStr})\")\n    macro input*(n: int, ts: varargs[auto]): untyped =\n        for typ in ts:\n            if typ.typeKind != ntyAnything:\n                error(\"Expected typedesc, got \" & typ.repr, typ)\n        parseExpr(&\"({n.repr}).newSeqWith input({ts.repr})\")\n    proc `fmtprint`*(x: int or string or char or bool): string = return $x\n    proc `fmtprint`*(x: float or float32 or float64): string = return &\"{x:.16f}\"\n    proc `fmtprint`*[T](x: seq[T] or Deque[T] or HashSet[T] or set[T]): string = return x.toSeq.join(\" \")\n    proc `fmtprint`*[T, N](x: array[T, N]): string = return x.toSeq.join(\" \")\n    proc `fmtprint`*[T](x: HeapQueue[T]): string =\n        var q = x\n        while q.len != 0:\n            result &= &\"{q.pop()}\"\n            if q.len != 0: result &= \" \"\n    proc `fmtprint`*[T](x: CountTable[T]): string =\n        result = x.pairs.toSeq.mapIt(&\"{it[0]}: {it[1]}\").join(\" \")\n    proc `fmtprint`*[K, V](x: Table[K, V]): string =\n        result = x.pairs.toSeq.mapIt(&\"{it[0]}: {it[1]}\").join(\" \")\n    proc print*(prop: tuple[f: File, sepc: string, endc: string, flush: bool], args: varargs[string, `fmtprint`]) =\n        for i in 0..<len(args):\n            prop.f.write(&\"{args[i]}\")\n            if i != len(args) - 1: prop.f.write(prop.sepc) else: prop.f.write(prop.endc)\n        if prop.flush: prop.f.flushFile()\n    proc print*(args: varargs[string, `fmtprint`]) = print((f: stdout, sepc: \" \", endc: \"\\n\", flush: false), args)\n    const LOCAL_DEBUG{.booldefine.} = false\n    macro getSymbolName(x: typed): string = x.toStrLit\n    macro debug*(args: varargs[untyped]): untyped =\n        when LOCAL_DEBUG:\n            result = newNimNode(nnkStmtList, args)\n            template prop(e: string = \"\"): untyped = (f: stderr, sepc: \"\", endc: e, flush: true)\n            for i, arg in args:\n                if arg.kind == nnkStrLit:\n                    result.add(quote do: print(prop(), \"\\\"\", `arg`, \"\\\"\"))\n                else:\n                    result.add(quote do: print(prop(\": \"), getSymbolName(`arg`)))\n                    result.add(quote do: print(prop(), `arg`))\n                if i != args.len - 1: result.add(quote do: print(prop(), \", \"))\n                else: result.add(quote do: print(prop(), \"\\n\"))\n        else:\n            return (quote do: discard)\n    proc `%`*(x: SomeInteger, y: SomeInteger): int =\n        result = x mod y\n        if y > 0 and result < 0: result += y\n        if y < 0 and result > 0: result += y\n    proc `//`*(x: SomeInteger, y: SomeInteger): int =\n        result = x div y\n        if y > 0 and result * y > x: result -= 1\n        if y < 0 and result * y < x: result -= 1\n    proc `^`*(x: SomeInteger, y: SomeInteger): int = x xor y\n    proc `&`*(x: SomeInteger, y: SomeInteger): int = x and y\n    proc `|`*(x: SomeInteger, y: SomeInteger): int = x or y\n    proc `>>`*(x: SomeInteger, y: SomeInteger): int = x shr y\n    proc `<<`*(x: SomeInteger, y: SomeInteger): int = x shl y\n    proc `%=`*(x: var SomeInteger, y: SomeInteger): void = x = x % y\n    proc `//=`*(x: var SomeInteger, y: SomeInteger): void = x = x // y\n    proc `^=`*(x: var SomeInteger, y: SomeInteger): void = x = x ^ y\n    proc `&=`*(x: var SomeInteger, y: SomeInteger): void = x = x & y\n    proc `|=`*(x: var SomeInteger, y: SomeInteger): void = x = x | y\n    proc `>>=`*(x: var SomeInteger, y: SomeInteger): void = x = x >> y\n    proc `<<=`*(x: var SomeInteger, y: SomeInteger): void = x = x << y\n    proc `[]`*(x, n: int): bool = (x and (1 shl n)) != 0\n    proc `[]=`*(x: var int, n: int, i: bool) =\n        if i: x = x or (1 << n)\n        else: (if x[n]: x = x xor (1 << n))\n    proc pow*(a, n: int, m = INF64): int =\n        var\n            rev = 1\n            a = a\n            n = n\n        while n > 0:\n            if n % 2 != 0: rev = (rev * a) mod m\n            if n > 1: a = (a * a) mod m\n            n >>= 1\n        return rev\n    when not declared CPLIB_MATH_ISQRT:\n        const CPLIB_MATH_ISQRT* = 1\n        proc isqrt*(n: int): int =\n            var x = n\n            var y = (x + 1) shr 1\n            while y < x:\n                x = y\n                y = (x + n div x) shr 1\n            return x\n    \n    proc chmax*[T](x: var T, y: T): bool {.discardable.} = (if x < y: (x = y; return true; ) return false)\n    proc chmin*[T](x: var T, y: T): bool {.discardable.} = (if x > y: (x = y; return true; ) return false)\n    proc `max=`*[T](x: var T, y: T) = x = max(x, y)\n    proc `min=`*[T](x: var T, y: T) = x = min(x, y)\n    proc at*(x: char, a = '0'): int = int(x) - int(a)\n    proc Yes*(b: bool = true): void = print(if b: \"Yes\" else: \"No\")\n    proc No*(b: bool = true): void = Yes(not b)\n    proc YES_upper*(b: bool = true): void = print(if b: \"YES\" else: \"NO\")\n    proc NO_upper*(b: bool = true): void = Yes_upper(not b)\n    const DXY* = [(0, -1), (0, 1), (-1, 0), (1, 0)]\n    const DDXY* = [(1, -1), (1, 0), (1, 1), (0, -1), (0, 1), (-1, -1), (-1, 0), (-1, 1)]\n    macro exit*(statement: untyped): untyped = (quote do: (`statement`; quit()))\n    proc initHashSet[T](): Hashset[T] = initHashSet[T](0)\n"
# source: https://github.com/kemuniku/cplib/tree/main/src/cplib/collections/tatyamset.nim
ImportExpand "cplib/collections/tatyamset" <=== "# https://github.com/tatyam-prime/SortedSet/blob/main/SortedMultiset.py\nwhen not declared CPLIB_COLLECTIONS_TATYAMSET:\n    import algorithm\n    import math\n    import sequtils\n    import sugar\n    import options\n    const CPLIB_COLLECTIONS_TATYAMSET* = 1\n\n    const BUCKET_RATIO = 8\n    const SPLIT_RATIO = 12\n    type SortedMultiSet*[T] = ref object\n        size: int\n        arr*: seq[seq[T]]\n    proc initSortedMultiset*[T](v: seq[T] = @[]): SortedMultiSet[T] =\n        #Make a new SortedMultiset from seq. / O(N) if sorted / O(N log N)\n        var v = v\n        if not isSorted(v):\n            v.sort()\n        var n = len(v)\n        var bucket_size = int(ceil(sqrt(n/BUCKET_RATIO)))\n        var arr = collect(newseq): (for i in 0..<bucket_size: v[(n*i div bucket_size) ..< (n*(i+1) div bucket_size)])\n        result = SortedMultiSet[T](size: n, arr: arr)\n\n    proc len*(self: SortedMultiSet): int =\n        return self.size\n\n    proc position[T](self: SortedMultiSet[T], x: T): (int, int) =\n        #\"return the bucket, index of the bucket and position in which x should be. self must not be empty.\"\n        for i in 0..<self.arr.len:\n            if x <= self.arr[i][^1]:\n                return (i, self.arr[i].lowerBound(x))\n        return (len(self.arr)-1, self.arr[^1].lowerBound(x))\n\n    proc contains*[T](self: SortedMultiSet[T], x: T): bool =\n        if self.size == 0: return false\n        var (i, j) = self.position(x)\n        return j != len(self.arr[i]) and self.arr[i][j] == x\n\n    proc incl*[T](self: SortedMultiSet[T], x: T) =\n        #\"Add an element. / O(√N)\"\n        if self.size == 0:\n            self.arr = @[@[x]]\n            self.size = 1\n            return\n        var (b, i) = self.position(x)\n        self.arr[b].insert(x, i)\n        self.size += 1\n        if len(self.arr[b]) > len(self.arr) * SPLIT_RATIO:\n            var mid = len(self.arr[b]) shr 1\n            self.arr.insert(self.arr[b][mid..<len(self.arr[b])], b+1)\n            self.arr[b] = self.arr[b][0..<mid]\n\n    proc innerpop[T](self: SortedMultiSet[T], b: int, i: int): T{.discardable.} =\n        var b = b\n        if b < 0:\n            b = self.size + b\n        var ans = self.arr[b][i]\n        self.arr[b].delete(i)\n        self.size -= 1\n        if len(self.arr[b]) == 0: self.arr.delete(b)\n        return ans\n\n    proc excl*[T](self: SortedMultiSet[T], x: T): bool{.discardable.} =\n        #\"Remove an element and return True if removed. / O(√N)\"\n        if self.size == 0: return false\n        var (b, i) = self.position(x)\n        if i == len(self.arr[b]) or self.arr[b][i] != x: return false\n        self.innerpop(b, i)\n        return true\n\n    proc lt*[T](self: SortedMultiSet[T], x: T): Option[T] =\n        #\"Find the largest element < x, or None if it doesn't exist.\"\n        for i in countdown(len(self.arr)-1, 0, 1):\n            if self.arr[i][0] < x:\n                return some(self.arr[i][lowerBound(self.arr[i], x) - 1])\n        return none(T)\n\n    proc le*[T](self: SortedMultiSet[T], x: T): Option[T] =\n        #\"Find the largest element <= x, or None if it doesn't exist.\"\n        for i in countdown(len(self.arr)-1, 0, 1):\n            if self.arr[i][0] <= x:\n                return some(self.arr[i][upperBound(self.arr[i], x) - 1])\n        return none(T)\n\n    proc gt*[T](self: SortedMultiSet[T], x: T): Option[T] =\n        #\"Find the smallest element > x, or None if it doesn't exist.\"\n        for i in 0..<len(self.arr):\n            if self.arr[i][^1] > x:\n                return some(self.arr[i][upperBound(self.arr[i], x)])\n        return none(T)\n\n    proc ge*[T](self: SortedMultiSet[T], x: T): Option[T] =\n        #\"Find the smallest element >= x, or None if it doesn't exist.\"\n        for i in 0..<len(self.arr):\n            if self.arr[i][^1] >= x:\n                return some(self.arr[i][lowerBound(self.arr[i], x)])\n        return none(T)\n\n    proc `[]`*[T](self: SortedMultiSet[T], i: int): T =\n        var i = i\n        #\"Return the i-th element.\"\n        if i < 0:\n            for j in countdown(len(self.arr)-1, 0, 1):\n                i += len(self.arr[j])\n                if i >= 0: return self.arr[j][i]\n        else:\n            for j in 0..<len(self.arr):\n                if i < len(self.arr[j]): return self.arr[j][i]\n                i -= len(self.arr[j])\n        raise newException(IndexDefect, \"index \" & $i & \" not in 0 .. \" & $(self.size-1))\n\n    proc pop*[T](self: SortedMultiSet[T], i: int = -1): T =\n        #\"Pop and return the i-th element.\"\n        var i = i\n        if i < 0:\n            for b in countdown(len(self.arr)-1, 0, 1):\n                i += len(self.arr[b])\n                if i >= 0: return self.innerpop(not b, i)\n        else:\n            for b in 0..<len(self.arr):\n                if i < len(self.arr[b]): return self.innerpop(b, i)\n                i -= len(self.arr[b])\n        raise newException(IndexDefect, \"index \" & $i & \" not in 0 .. \" & $(self.size-1))\n\n    proc index*[T](self: SortedMultiSet[T], x: T): int =\n        #\"Count the number of elements < x.\"\n        for i in 0..<len(self.arr):\n            if self.arr[i][^1] >= x:\n                return result + lowerBound(self.arr[i], x)\n            result += len(self.arr[i])\n\n    proc index_right*[T](self: SortedMultiSet[T], x: T): int =\n        #\"Count the number of elements <= x.\"\n        for i in 0..<len(self.arr):\n            if self.arr[i][^1] > x:\n                return result + upperBound(self.arr[i], x)\n            result += len(self.arr[i])\n    proc count*[T](self: SortedMultiSet[T], x: T): int =\n        #\"Count the number of x.\"\n        return self.index_right(x) - self.index(x)\n\n    iterator items*[T](self: SortedMultiSet[T]): T =\n        for i in 0..<len(self.arr):\n            for j in self.arr[i]:\n                yield j\n"
# source: https://github.com/kemuniku/cplib/tree/main/src/cplib/collections/segtree.nim
ImportExpand "cplib/collections/segtree" <=== "when not declared CPLIB_COLLECTIONS_SEGTREE:\n    const CPLIB_COLLECTIONS_SEGTREE* = 1\n    import algorithm\n    import strutils\n    type SegmentTree*[T] = ref object\n        default: T\n        merge: proc(x: T, y: T): T\n        arr*: seq[T]\n        lastnode: int\n        length: int\n    proc initSegmentTree*[T](v: seq[T], merge: proc(x: T, y: T): T, default: T): SegmentTree[T] =\n        var lastnode = 1\n        while lastnode < len(v):\n            lastnode*=2\n        var arr = newSeq[T](2*lastnode)\n        arr.fill(default)\n        var self = SegmentTree[T](default: default, merge: merge, arr: arr, lastnode: lastnode, length: len(v))\n        #1-indexedで作成する\n        for i in 0..<len(v):\n            self.arr[self.lastnode+i] = v[i]\n        for i in countdown(lastnode-1, 1):\n            self.arr[i] = self.merge(self.arr[2*i], self.arr[2*i+1])\n        return self\n\n    proc update*[T](self: SegmentTree[T], x: Natural, val: T) =\n        assert x < self.length\n        var x = x\n        x += self.lastnode\n        self.arr[x] = val\n        while x > 1:\n            x = x shr 1\n            self.arr[x] = self.merge(self.arr[2*x], self.arr[2*x+1])\n    proc get*[T](self: SegmentTree[T], q_left: Natural, q_right: Natural): T =\n        assert q_left <= q_right and 0 <= q_left and q_right <= self.length\n        var q_left = q_left\n        var q_right = q_right\n        q_left += self.lastnode\n        q_right += self.lastnode\n        var (lres, rres) = (self.default, self.default)\n        while q_left < q_right:\n            if (q_left and 1) > 0:\n                lres = self.merge(lres, self.arr[q_left])\n                q_left += 1\n            if (q_right and 1) > 0:\n                q_right -= 1\n                rres = self.merge(self.arr[q_right], rres)\n            q_left = q_left shr 1\n            q_right = q_right shr 1\n        return self.merge(lres, rres)\n    proc get*[T](self: SegmentTree[T], segment: HSlice[int, int]): T =\n        assert segment.a <= segment.b + 1 and 0 <= segment.a and segment.b+1 <= self.length\n        return self.get(segment.a, segment.b+1)\n    proc `[]`*[T](self: SegmentTree[T], segment: HSlice[int, int]): T = self.get(segment)\n    proc `[]`*[T](self: SegmentTree[T], index: Natural): T =\n        assert index < self.length\n        return self.arr[index+self.lastnode]\n    proc `[]=`*[T](self: SegmentTree[T], index: Natural, val: T) =\n        assert index < self.length\n        self.update(index, val)\n    proc get_all*[T](self: SegmentTree[T]): T =\n        return self.arr[1]\n    proc len*[T](self: SegmentTree[T]): int =\n        return self.length\n    proc `$`*[T](self: SegmentTree[T]): string =\n        var s = self.arr.len div 2\n        return self.arr[s..<s+self.len].join(\" \")\n    template newSegWith*(V, merge, default: untyped): untyped =\n        initSegmentTree(V, proc (l{.inject.}, r{.inject.}: typeof(default)): typeof(default) = merge, default)\n    proc max_right*[T](self: SegmentTree[T], l: int, f: proc(l: T): bool): int =\n        assert 0 <= l and l <= self.len\n        assert f(self.default)\n        if l == self.len: return self.len\n        var l = l\n        l += self.lastnode\n        var sm = self.default\n        while true:\n            while l mod 2 == 0: l = (l shr 1)\n            if not f(self.merge(sm, self.arr[l])):\n                while l < self.lastnode:\n                    l *= 2\n                    if f(self.merge(sm, self.arr[l])):\n                        sm = self.merge(sm, self.arr[l])\n                        l += 1\n                return l - self.lastnode\n            sm = self.merge(sm, self.arr[l])\n            l += 1\n            if (l and -l) == l: break\n        return self.len\n    proc min_left*[T](self: SegmentTree[T], r: int, f: proc(l: T): bool): int =\n        assert 0 <= r and r <= self.len\n        assert f(self.default)\n        if r == 0: return 0\n        var r = r\n        r += self.lastnode\n        var sm = self.default\n        while true:\n            r -= 1\n            while (r > 1 and r mod 2 != 0): r = (r shr 1)\n            if not f(self.merge(self.arr[r], sm)):\n                while r < self.lastnode:\n                    r = 2 * r + 1\n                    if f(self.merge(self.arr[r], sm)):\n                        sm = self.merge(self.arr[r], sm)\n                        r -= 1\n                return r + 1 - self.lastnode\n            if (r and -r) == r: break\n        return 0\n"

# {.checks: off.}

var n, q = input(int)
var a = input(int, n)
var query = newSeq[(int, int, int)]()
for i in 0..<q:
    var t = input(int)
    if t == 1:
        var k, x = input(int)
        query.add((t, k-1, x))
    elif t == 2:
        query.add((t, 0, 0))
    else:
        var k = input(int)
        query.add((t, k-1, 0))

var cnt = newSegWith(newSeqWith(n, 1), l+r, 1)
var up = (0..<n).toSeq
var st = initSortedMultiset[int]()

for i in 0..<q:
    var (t, k, x) = query[i]
    if t == 1:
        if cnt[k] != 1:
            var p = k - cnt[0..<k]
            discard st.pop(p)
            cnt[k] = 1
            up.add(k)
        a[i] = x
    elif t == 2:
        for j in up:
            cnt[j] = 0
            st.incl(a[i])
        up = newSeq[int]()
    else:
        if cnt[k] == 1:
            print(a[k])
        else:
            var p = k - cnt[0..<k]
            print(st[p])