#include<stdio.h>
#include<math.h>
// use #gcc <filename,c> -lm    to compile while using math.h
int main()
{
  float x1=0,y1=0,r1=0,x2=0,y2=0,r2=0;
  printf("Enter the coordinates and radius of circle 1 in format: x1,y1,r1 ");
  scanf("%f,%f,%f",&x1,&y1,&r1);
  printf("Enter the coordinates and radius of circle 2 in format: x2,y2,r2 ");
  scanf("%f,%f,%f",&x2,&y2,&r2);
  
  double squareDistance = ((x2-x1)*(x2-x1) + (y2-y1)*(y2-y1));
  double distanceCenter = sqrt(squareDistance); 
  
  if(distanceCenter <= r1+r2)
  {
    printf("Circles intersect\n");
  }
  else
  {
    printf("Circles do not intersect\n");
  }
  
  return 0;
}