import java.io.PrintWriter
import java.util.*
import kotlin.math.*

fun PrintWriter.solve() {
    val n = nextInt()
    val q = nextInt()
    val uf = UnionFind(n)
    var now = 0
    val rnd = Random()
    val candidates = mutableListOf<Int>()
    case@ for (i in 0 until q) {
        val t = nextInt()
        if (t == 1) {
            val u = nextInt() - 1
            val v = nextInt() - 1
            uf.unite(u, v)
        } else {
            val v = nextInt() - 1
            if (uf.size(v) == n) {
                println(-1)
            } else {
                for (w in candidates) {
                    if (!uf.same(v, w)) {
                        println(w + 1)
                        continue@case
                    }
                }
                while (uf.same(v, now)) {
                    now = rnd.nextInt(n)
                }
                println(now + 1)
                candidates.add(now)
            }
        }
    }
}

class UnionFind(n: Int) {
    private val rank = IntArray(n) { 0 }
    private val parent = IntArray(n) { -1 }

    fun find(x: Int): Int {
        if (parent[x] < 0) {
            return x
        }
        parent[x] = find(parent[x])
        return parent[x]
    }

    fun unite(x: Int, y: Int) {
        val x1 = find(x)
        val y1 = find(y)
        if (x1 == y1) {
            return
        }
        if (rank[x1] < rank[y1]) {
            parent[y1] += parent[x1]
            parent[x1] = y1
        } else {
            parent[x1] += parent[y1]
            parent[y1] = x1
            if (rank[x1] == rank[y1]) {
                rank[x1]++
            }
        }
    }

    fun same(x: Int, y: Int) = find(x) == find(y)

    fun size(x: Int) = -parent[find(x)]
}

fun main() {
    Thread(null, {
        val writer = PrintWriter(System.out, false)
        writer.solve()
        writer.flush()
    }, "solve", abs(1L.shl(26)))
        .apply { setUncaughtExceptionHandler { _, e -> e.printStackTrace(); kotlin.system.exitProcess(1) } }
        .apply { start() }.join()
}

// region Scanner
private var st = StringTokenizer("")
private val br = System.`in`.bufferedReader()

fun next(): String {
    while (!st.hasMoreTokens()) st = StringTokenizer(br.readLine())
    return st.nextToken()
}

fun nextInt() = next().toInt()
fun nextLong() = next().toLong()
fun nextLine() = br.readLine()
fun nextDouble() = next().toDouble()
// endregion