Square of asterisk

Reads in the side of a square and then print that square out of asterisk.

/*
   title: square of asterisk
   author: aeriqusyairi
   date: dec27 2011
*/

#include<stdio.h>
#include<stdlib.h>

int main(){
   int side=0,c1=1,c2=1;
   printf("Input the side of your square: ");
   scanf("%d", &side);
   for(c1=1;c1 <= side;c1++){
      for(c2=1;c2 <= side;c2++){
         printf("*");              
      }
      printf("\n");
   }    
   system("pause");
   return 0;
}