C :

#include <stdio.h>
void main()
{
	int a,b,c;
	scanf("%d%d%d",&a,&b,&c);
	b=a/3+b,c=a/3+c,a=a/3;
	c=b/3+c,a=b/3+a,b=b/3;
	b=c/3+b,a=c/3+a,c=c/3;
	printf("%d %d %d\n",a,b,c);
}

C++ :

#include <iostream>
#include <cstdio>
using namespace std;
int main()
{
    int a,b,c;
    cin>>a>>b>>c;
    a=a/3;  b=b+a;  c=c+a;
    b=b/3;  a=a+b;  c=c+b;
    c=c/3;  a=a+c;  b=b+c;
    cout<<a<<" "<<b<<" "<<c<<endl;
    return 0;
}

Java :

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner input=new Scanner(System.in);
		int a=input.nextInt();
		int b=input.nextInt();
		int c=input.nextInt();
		int count=0;
		if(a%3!=0) {
			count=a/3;
			a=count;
			b+=count;
			c+=count;
			
			count=0;
		}else {
			count=a/3;
			a=count;
			b+=count;
			c+=count;
			
			count=0;
		}
		if(b%3!=0) {
			count=b/3;
			b=count;
			a+=count;
			c+=count;
			
			count=0;
		}else {
			count=b/3;
			b=count;
			a+=count;
			c+=count;
			count=0;
		}
		if(c%3!=0) {
			count=c/3;
			c=count;
			a+=count;
			b+=count;
			count=0;
		}else {
			count=c/3;
			c=count;
			a+=count;
			b+=count;
			count=0;
		}
		System.out.println(a+" "+b+" "+c);
	}

}