multi loop in c

#include <stdio.h>

int main(){
int i,j,k;
for ( i = 1; i <= 5; i++ ) {
 for ( j = 1; j <= 3; j++ ) {
 for ( k = 1; k <= 4; k++ )
 printf( "*" );
 printf( "\n" );
 }
 printf( "\n" );
 }

 system("pause");
 return 0;
}