C :

#include<stdio.h>   

int main(){ 
	int i,sum=0;

	for(i = 100;i >= 1;i-=3){ 
		sum += i;   
	}
	
	printf("%d",sum);
	return 0;
} 

C++ :

#include<iostream>
using namespace std;
int main(){
	int i,s;
	i=100;
	s=0;
	while(i>=1){
//		cout<<i<<endl;
		s=s+i;
		
		i=i-3;
	}
		
	cout<<s<<endl;
	
}

Pascal :

begin
  writeln('1717');
end.

Java :

import java.util.*;
public class Main{
	public static void main(String[] args) {
		int sum = 0;
		for(int i = 100;i >=1;i-=3){
			sum+=i;
		}
		System.out.println(sum);
	}
}

Python :

i=1
s=0
while i<=100:
    s+=i
    i+=3
print(s)