Could you please help why my program goes through do while loop just once, although the condition is true.

//Program is getting numbers from user and realize whether they are correct numbers for triangle side or not and if tey find out the area//

```
#include<stdio.h>
#include<math.h>
double TraingleArea();
int main(void)
{
int Firstside,Secondside,Thirdside;
char Answer;
do
{
printf("Enter your Triangle's side \n");
scanf("%d %d %d", &Firstside, &Secondside, &Thirdside);
if(Firstside<=0 || Secondside<=0 || Thirdside<=0)
printf("Sides of traingle are positive,please enter three positive integer numbers.");
else
{
if(Firstside+Secondside<=Thirdside || Secondside+Thirdside<=Firstside ||Firstside+Thirdside<=Secondside)
printf("They are not valid numbers for sides of traingle.");
else
{
if(Firstside==Secondside && Secondside==Thirdside)
printf("The tringle is Equilateral\t Its area is equal to %f \n",TraingleArea(Firstside,Secondside,Thirdside) );
else if(Firstside==Secondside || Firstside==Thirdside || Secondside==Thirdside)
printf("The triangle is Isosceles\t Its area is equal to %f \n",TraingleArea(Firstside,Secondside,Thirdside) );
else
printf("The triangle is Scalene\t Its area is equal to %f \n",TraingleArea(Firstside,Secondside,Thirdside) );
}
}
printf("Would you like to continue? Y/N\n");
scanf("%c",&Answer);
}while(Answer=='Y');
}
double TraingleArea(unsigned Firstside,unsigned Secondside, unsigned Thirdside)
{
double halfPerimeter=(double)(Firstside+Secondside+Thirds ide)/2;
double Area;
Area=sqrt(halfPerimeter*(halfPerimeter-Firstside)*(halfPerimeter-Secondside)*(halfPerimeter-Thirdside));
return Area;
}
```