#include <stdio.h>


void main(void) {
	int a,b,c;
	scanf("%d %d %d",&a,&b,&c);
	int area = (a*b + b*c + c*a) *2;
	int volume = a*b*c;

	if(area > volume){
		printf("2");
	}else{
		printf("3");
	}
	
}