C Program to find area of a square

//Program to find area of a square
#include<stdio.h>
int main()
{
    int a,area;
    printf("\n enter the side of a square :");
    scanf("%d",&a);
    printf("\n Area of a square : %d \n",a*a);
    printf("\n Perimeter of square :%d",4*a);
return 0;
}