include stdio include stdlib include math int main int argc char argv

#include <stdio.h>
#include <stdlib.h>
#include <math.h>

int main(int argc, char *argv[])
{
  double t, s, f;
  printf("t=");
  scanf("%lf=", &t);

  printf("s=");
  scanf("%lf=", &s);
  
  if(s>4 || s<=4)
   {
   if (s>4)
   
    f=3*t-1;
   
   if (s<=4)
   f=sprt(abs(t-s));
   
   }
   else 
   f=s+2;
   
   printf("%lf",f);
   system("PAUSE"); 
return 0;
}