C :

#include<stdio.h>



int main()
{
    int a,a1,a2,a3,a4,i,j;
    scanf("%d",&a);
    printf("%d ",a/1000);
    a=a%1000;
    printf("%d ",a/100);
    a=a%100;
    printf("%d ",a/10);
    a=a%10;
    printf("%d",a);

}

C++ :

#include<iostream>
#include<math.h>
using namespace std;
int main()
{
    int i;
    cin>>i;
    cout<<i/1000<<" ";
    i=i%1000;
    cout<<i/100<<" ";
    i=i%100;
    cout<<i/10<<" ";
    i=i%10;
    cout<<i;             
    return 0;
}

Java :

import java.util.Scanner;

public class Main
{
	public static void main(String args[])
	{
		Scanner in=new Scanner(System.in);
		int n=in.nextInt();
		int s[]=new int[4];
		for(int i=3;i>=0;i--)
		{
			s[i]=n%10;
			n/=10;
		}
		for(int i=0;i<4;i++)
		{
			System.out.print(s[i]);
			System.out.print(" ");
		}
		System.out.println();

	}
}

Python :

a = map(lambda x:(x), raw_input().split())[0]

#b = a[1]
#c = a[2]
#a = a[0]

x = ''
for i in a :
    x+=i+' '

print x