#define N 100000000
main() {
	int i,  idx[N], a[N], b[N+1];

	/* This loop initializes the array idx with 
    	 * pseudo-random numbers between 1 and N
	 */
	for ( i=0; i<N; i++ )
	   idx[i] = 1 + (13131313*i) % N;

 	/* Indexed loop */
	for ( i=0; i<N; i++ )
	   b[idx[i]] = a[i];
}