#include<stdio.h>
int main()
{
	int a, b, c;
	scanf("%d %d %d", &a, &b, &c);
	int x, y;
	x = 2 * (a * b + b * c + c * a);
	y = a * b * c;
	if (x > y)
		printf("2\n");
	else
		printf("3\n");
	return 0;
}