from collections import defaultdict

class UnionFind():
    def __init__(self, n):
        self.n = n
        self.root = n
        self.parents = [-1] * n

    def find(self, x):
        if self.parents[x] < 0:
            return x
        else:
            self.parents[x] = self.find(self.parents[x])
            return self.parents[x]

    def union(self, x, y):
        x = self.find(x)
        y = self.find(y)

        if x == y:
            return

        if self.parents[x] > self.parents[y]:
            x, y = y, x

        self.parents[x] += self.parents[y]
        self.parents[y] = x
        self.root-=1

    def size(self, x):
        return -self.parents[self.find(x)]

    def same(self, x, y):
        return self.find(x) == self.find(y)

    def members(self, x):
        root = self.find(x)
        return [i for i in range(self.n) if self.find(i) == root]

    def roots(self):
        return [i for i, x in enumerate(self.parents) if x < 0]

    def group_count(self):
        return self.root

    def all_group_members(self):
        group_members = defaultdict(list)
        for member in range(self.n):
            group_members[self.find(member)].append(member)
        return group_members

    def __str__(self):
        return '\n'.join(f'{r}: {m}' for r, m in self.all_group_members().items())


N,q = map(int, input().split())
Q = [list(map(int, input().split())) for _ in range(q)]
uf = UnionFind(N)
STACK = []
m1_cnt = 0
is_all_union = N==1
for q in Q:
    if len(q)==3:
        _,u,v = q
        if not is_all_union:
            if uf.group_count()==2 and not uf.same(u-1,v-1):
                is_all_union=True
            else:
                uf.union(u-1,v-1)
    else:
        _,v = q
        if is_all_union:
            m1_cnt+=1
        else:
            STACK.append(v-1)
for i in range(N):
    if not uf.same(0,i):
        nd = i+1
for s in STACK:
    if uf.same(0,s):
        print(nd)
    else:
        print(1)
for _ in range(m1_cnt):
    print(-1)