#include<stdio.h>
int main()
{
 int x,y;
 printf("x=");
 scanf("%d",&x);
 if(x<1)
 y=x;
 else
 if(x>=1&&x<10) y=2*x-1;
 else y=3*x-11;
 printf("x=%d,y=%d\n",x,y);
 return 0;
}