from sys import stdin, stdout
input = lambda: stdin.readline().rstrip()
write = stdout.write

def main():
    B1, B2, B3 = map(int, input().split())

    d = 0
    while 1:
        if B1 + d and B2 + d:
            r1 = (B2 - d) // B1
            r2 = (B3 - d) // B2
            if r1 == r2:
                break
        d += 1

    ans = r1 * B3 + d
    print(ans)

main()