#include<iostream>
#include<cstdlib>
#include<cstdio>
#include<ctime>
using namespace std;
int main(void)
{
	int a[4],b[4],k[10],count,tmp,co=9,j,e;
	char q[4];
	int ar=0,wr=0;
	char string;
	bool bool1=false;
	srand(time(NULL));
	for(int i=0;i<=9;i++)
	{
		k[i]=i;
	}
	for(i=0;i<=3;i++)
	{
		count=int(rand() % co);
		a[i]=k[count];
		tmp=k[count];
		k[count]=k[co];
		k[co]=tmp;
		co--;
	}
	cout<<"瞦計