import sys

readline = sys.stdin.readline
MOD = 10 ** 9 + 7
INF = float('INF')
sys.setrecursionlimit(10 ** 5)


def main():
    S = set(map(int, readline().split()))

    if len(S) == 2:
        print("Yes")
    else:
        print("No")

if __name__ == '__main__':
    main() import sys sys readline = sys.stdin.readline readline sys.stdin.readline sys.stdin sys stdin readline MOD = 10 ** 9 + 7 MOD 10 ** 9 + 7 10 ** 9 10 9 7 INF = float('INF') INF float('INF') float 'INF' sys.setrecursionlimit(10 ** 5) sys.setrecursionlimit sys setrecursionlimit 10 ** 5 10 5 def main():
    S = set(map(int, readline().split()))

    if len(S) == 2:
        print("Yes")
    else:
        print("No") main S = set(map(int, readline().split())) S set(map(int, readline().split())) set map(int, readline().split()) map int readline().split() ().split () readline split if len(S) == 2:
        print("Yes")
    else:
        print("No") len(S) == 2 len(S) len S 2 print("Yes") print "Yes" print("No") print "No" if __name__ == '__main__':
    main() __name__ == '__main__' __name__ '__main__' main() main readline = sys.stdin.readline sys.stdin.readline readline INF = float('INF') float('INF') INF def main():
    S = set(map(int, readline().split()))

    if len(S) == 2:
        print("Yes")
    else:
        print("No") def main():
    S = set(map(int, readline().split()))

    if len(S) == 2:
        print("Yes")
    else:
        print("No") main MOD = 10 ** 9 + 7 10 ** 9 + 7 MOD
import sys

readline = sys.stdin.readline
MOD = 10 ** 9 + 7
INF = float('INF')
sys.setrecursionlimit(10 ** 5)


def main():
    S = set(map(int, readline().split()))

    if len(S) == 2:
        print("Yes")
    else:
        print("No")

if __name__ == '__main__':
    main()
