mod = 1000000007
eps = 10**-9


def main():
    import sys
    input = sys.stdin.readline

    ABC = list(map(int, input().split()))
    DEF = list(map(int, input().split()))
    ABC_sorted = sorted(ABC)
    DEF_sorted = sorted(DEF)

    if ABC_sorted == DEF_sorted:
        print("Yes")
        print(2)
    else:
        print("No")


if __name__ == '__main__':
    main()