#include<stdio.h>
int main(void)
{
  int scan;//scanf警告用
  int ans=0;
  int i, j;
  
  int a;
  int b;
  scan=scanf("%d",&a);
  scan=scanf("%d",&b);
  int c;scan=scanf("%d",&c);
  
  int x=(2*a*b)+(2*b*c)+(2*a*c);
  int y=a*b*c;
  puts(x<y?"3":"2");
  return 0;
}