import sys
def input():
    return sys.stdin.readline().rstrip()
from math import floor
def main():
    A, B, C = map(int, input().split())
    X = 2*(A*B+B*C+C*A)
    Y = A*B*C
    if X > Y:
        print(2)
    else:
        print(3)
if __name__ == "__main__":
    main()