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