import sys

class UnionFind(object):
    def __init__(self, n=1):
        self.par = [i for i in range(n)]
        self.rank = [0 for _ in range(n)]
        self.size = [1 for _ in range(n)]

    def find(self, x):
        if self.par[x] == x:
            return x
        else:
            self.par[x] = self.find(self.par[x])
            return self.par[x]

    def union(self, x, y):
        x = self.find(x)
        y = self.find(y)
        if x != y:
            if self.rank[x] < self.rank[y]:
                x, y = y, x
            if self.rank[x] == self.rank[y]:
                self.rank[x] += 1
            self.par[y] = x
            self.size[x] += self.size[y]

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

    def get_size(self, x):
        x = self.find(x)
        return self.size[x]


N, Q = map(int, input().split())
query = [None] * Q
U = UnionFind(N)
for i in range(Q):
    query[i] = list(map(int, input().split()))
    if query[i][0] == 1:
        u, v = query[i][1:]
        u, v = u - 1, v - 1
        U.union(u, v)
    else:
        if U.get_size(0) == N:
            query[i].append(-1)
        else:
            query[i].append(1)
            
p, q = 0, -1
flag = 1
U = UnionFind(N)  
for i in range(Q):
    if query[i][0] == 2:
        if query[i][-1] == -1:
            flag = 0
    else:
        if flag:
            u, v = query[i][1:]
            u, v = u - 1, v - 1
            p = u
            q = v
            
for i in range(Q):
    if query[i][0] == 2:
        continue
    else:
        u, v = query[i][1:]
        u, v = u - 1, v - 1
        if u == p and v == q:
            break
        else:
            U.union(u, v)
            
ans = []  
for i in range(Q - 1, -1, -1):
    if query[i][0] == 2:
        if query[i][-1] != -1:
            flag = 0
            u = query[i][1] - 1
            if U.is_same(u, p):
                ans.append(q + 1)
            else:
                ans.append(p + 1)
        else:
            ans.append(-1)
    else:
        if flag:
            u, v = query[i][1:]
            u, v = u - 1, v - 1
            p = u
            q = v

ans.reverse()
for a in ans:
    print(a)