C :

#include<stdio.h>

int main()
{
	int n,t,s,a=0;
	while(scanf("%d",&n)!=EOF)
	{
		if(a++)
			printf("\n");
		s=0;
		while(1)
		{
			t=n%10;
			if(t%2==0)
				s+=t;
			n/=10;
			if(n==0)
				break;
		}
		printf("%d\n",s);
	}
	return 0;
}

C++ :

#include<stdio.h>

int main()
{
	int n,t,s,a=0;
	while(scanf("%d",&n)!=EOF)
	{
		if(a++)
			printf("\n");
		s=0;
		while(1)
		{
			t=n%10;
			if(t%2==0)
				s+=t;
			n/=10;
			if(n==0)
				break;
		}
		printf("%d\n",s);
	}
	return 0;
}

Pascal :

var a:string;y,i,b,s:integer;
begin
while not eof do
begin
readln(a);
for i:=1 to length(a)do
begin
val(copy(a,i,1),b,y);
if b mod 2=0 then
s:=s+b end;
writeln(s);
writeln;
s:=0
end
end.

Java :

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		while(in.hasNext()){
			char[] cs = in.nextLine().toCharArray();
			int cou = 0;
			for(char c:cs)
				if(c%2==0)
					cou+=c-48;
			System.out.println(cou);
			System.out.println();
		}
	}

}

Python :

import sys
  
for line in sys.stdin:
    a = line.split()[0]
    list = [int(i) for i in a if int(i)%2==0 ]
    if len(list)!=0:
       print reduce(lambda x,y:x+y,list)
       print ''
    else:
       print 0
       print ''