01  #include<stdio.h>
02  
03  int main()
04  {
05   int side, area;
06  
07   printf("nEnter the Length of Side : ");
08   scanf("%d", &side);
09  
10   area = side * side;
11  
12   printf("nArea of Square : %d", area);
13  
14   return 0;
15  }

 
 OUTPUT :
 
 Enter the Length of Side : 4
 Area of Square : 16