#include<stdio.h>
#include<math.h>
main()
{
    float x1,x2,y1,y2,x,y,d;
    printf("Upisite kordinate prve tocke: ");
    scanf("%f,%f",&x1,&y1);
    printf("\nUpisite kordinate druge tocke: ");
    scanf("%f,%f",&x2,&y2);
    x = x2-x1;
    y = y2-y1;
    d = sqrt(pow(x,2)+pow(y,2));
    printf("\nTocke su medusobno udaljene %f",d);
    scanf("%d");
    return 0;
}