N,Q = map(int,input().split())

parent = list(range(N))

import sys
sys.setrecursionlimit(10 ** 8)
s = set()
q = list(range(N))


def find(i):
    if parent[i] == i:return i
    parent[i] = find(parent[i])
    return parent[i]
def unite(i,j):
    I = find(i)
    J = find(j)
    if I == J:return False

    s.add(I)
    parent[i] = J
    parent[I] = J
    return True

for _ in range(Q):
    l = list(map(int,input().split()))
    if l[0] == 1:
        u,v = l[1],l[2]
        u -= 1
        v -= 1
        unite(u,v)
    else:
        u = l[1]
        u -= 1
        if len(s) == N - 1:
            print(-1)
        else:
            a = -1
            b = -1
            while q:
                a = q.pop()
                if a in s:continue
                else:break
            while q:
                b = q.pop()
                if b in s:continue
                else:break
            if a >= 0 and b >= 0:
                U = find(u)
                if U == a:print(b + 1)
                else:
                    print(a + 1)
                q.append(a)
                q.append(b)
            else:
                pass