C :

#include<stdio.h>
int main()
{
    int m,n,t,s;
    scanf("%d%d%d",&m,&n,&t);
   
    s=t+m+n;
    if(s>=270)
        printf("beijing");
    else
        printf("nanjing");
    return 0;
}

C++ :

#include <bits/stdc++.h>
using namespace std;

int main(){
    int x,y,z;
    cin>>x>>y>>z;
    double r = (x + y + z) / 3.0;
    if(r >= 90){
    	cout<<"beijing";
	}else{
		cout<<"nanjing";
	}
}
 

Java :

import java.util.Scanner;
public class Main
{
	public static void main(String[] Args)
	{
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		int c = sc.nextInt();
		int d = (a + b +c)/3;
		if(d>=90)
			System.out.println("beijing");
		else
			System.out.println("nanjing");
	}
}

Python :

n = input().split()
x = int(n[0])
y = int(n[1])
z = int(n[2])
su = x + y + z
if su / 3 >= 90:
    print('beijing')
else:
    print('nanjing')