没办法了？？？？

n = int(input())
s = set()
s1 = set()
for i in range(n):
    a, t = input().split()
    j = 1
    while j <= int(t):
        temp = int(float(a) * int(j))
        s1.add(temp)
        j += 1
    s = s.symmetric_difference(s1)
    s1.clear()
list1 = list(s)
for x in list1:
    print(x)