import sys
import io,os

from io import BytesIO

sys.stdin = BytesIO(os.read(0, os.fstat(0).st_size))

IN = sys.stdin
OUT = sys.stdout

tc = int(IN.readline())

p = [None] * 500010
n = 0
n2 = 0

for ti in range(tc):
    q = tuple(map(int, IN.readline().strip().split()))
    q1 = q[1]
    if q[0] == 1:
        if p[q1]:
            p[q1] = [ p[q1][0], n, p[q1] ]
        else:
            p[q1] = [ None, n, None ]
            p[q1][0] = p[q1]
        n += 1;
    else:
        q2 = q[2]
        if q1 != q2:
            if (p[q1]):
                if p[q2]:
                    #p[q2].extend(p[q1])
                    p[q2][0][2] = p[q1]
                    p[q2][0] = p[q1][0]
                else:
                    p[q2] = p[q1]
                p[q1] = None
                #n2 += 1

#if n2 > 300000:
#    exit(1)



ans = [None] * n
for i in range(len(p)):
    while p[i]:
        ans[p[i][1]] = str(i)
        p[i] = p[i][2]
#print(*ans)
#ans = ans[0:n]
sys.stdout.write(' '.join(ans))
#for a in ans:
#    sys.stdout.write(str(a) + ' ')
#    print(a, end=' ')