#include<iostream>
#include<cstdlib>
using namespace std;
int main()
{
	int x,s,a,d,c;
	cin>>x;
	s=x/1000;
	a=x/100%10; 
    d=x/10%10;
    c=x%10;
	cout<<s<<" "<<a<<" "<<d<<" "<<c<<endl;
	return 0 ;