import sys
input = lambda: sys.stdin.readline().rstrip()

def main():
    # 入力
    A, B, C = map(int, input().split())
    # 計算・出力
    X = 2*(A*B + B*C + C*A)
    Y = A*B*C
    print(2 if X>Y else 3)

if __name__ == "__main__":
    main()