#include <stdio.h>

a;b;d(n,m){return(m*6)+(n>0?d(n-1,m*10):0);}
f(n){a=d((int)log10(n)-1,1);b=d((int)log10(n),1);return(n-a<(b-a)/2)?a:b;}

main()
{
	printf(" 365 %d \n",f(5));
	printf(" 365 %d \n",f(365));
	printf(" 366 %d \n",f(366));
}