#include <cstdlib>
#include <iostream>
#include<stdlib.h>
#include<stdio.h>
using namespace std;
void output(){
int number;
scanf("%d",&number);
while(number%10 !=number){
printf("%d\n",number%10);
number /=10;
}
printf("%d\n",number);
}
int main(int argc, char *argv[])
{
output();
system("PAUSE");
return EXIT_SUCCESS;
}