Go: package main

import "fmt"

var (
	dept    int = 100000
	addDept int = dept / 100 * 5
)

func main() {
	var week, nWeekDept int
	fmt.Scan(&week)

	if week != 0 {
		nWeekDept = dept + addDept*week
	}

	if nWeekDept/addDept%2 != 0 {
		nWeekDept += addDept
	}
	fmt.Println(nWeekDept)
}

C++: #include<iostream>
using namespace std;
int main(){
int n,ans=100000;
cin>>n;
while(int i=0;i<n;i++){
ans=ans*1.05;
if(ans%1000)ans=(ans\1000)*1000+1000;
}
cout<<ans<<endl;
return 0;
}

C++: #include <iostream>

using namespace std;

int main(void)
{
	int n;
	cin>>n;

	int money=100000;
	for(int i=0; i<n; i++){
		
		money = money*1.05;

		int amari;

		amari = money%1000;

		if(amari>0){
			money += amari = 1000-amari;
		}
	}
	cout<<money<<endl;
}