/* test.c */
/* Last Change: 2018/08/26 (Sun) 21:17:04. */

#include<stdio.h>
#include<stdlib.h>
/* #include<string.h> */
/* #include<limits.h> */
/* #include<math.h> */
#include<time.h>

void shuffle(int array[],int start,int end){
	int i,j,t;
	for(i=start;i<end;i++){
		j=start+rand()%(end-start);
		t=array[i];
		array[i]=array[j];
		array[j]=t;
	}
}

int main(void){
	srand((unsigned)time(NULL));
	int i,array[6];
	for(i=0;i<6;i++)
		array[i]=i;
	shuffle(array,0,4);
	shuffle(array,4,6);
	for(i=0;i<6;i++)
		printf("%d ",array[i]);
	printf("\n");
	return 0;
}