/*文件名:exam5_21.cpp*/
#include <stdio.h>
main()
{
	int n,a,b;
	for (a=0;a<=9;a++)
		for (b=0;b<=9;b++) 
		{
			n=1000*a+100*b+10+2;
			if ((n-7)%7==0 && (n-8)%8==0 && (n-9)%9==0) 
			{
				printf("n=%d\n",n);
				break;
			}
		}
}