import sys
import logging
input = sys.stdin.readline
logger = logging.getLogger(__name__)


def read():
    A, B, C = map(int, input().strip().split())
    return A, B, C


def solve(A, B, C):
    X = 2 * (A * B + B * C + C * A)
    Y = A * B * C
    if X > Y:
        return 2
    else:
        return 3


if __name__ == "__main__":
    logging.basicConfig(level=logging.INFO)
    inputs = read()
    outputs = solve(*inputs)
    if outputs is not None:
        print("%s" % str(outputs))