Go: package main

import "fmt"

func roundUp1000(dept float64) float64 { 
	iDept := int(dept)
	if iDept-(iDept/1000*1000) != 0 { 
		iDept = ((iDept / 1000) + 1) * 1000 
	}
	return float64(iDept)
}

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

	dept := 100000.0
	for i := 0; i < week; i++ {

		dept *= 1.05
		dept = roundUp1000(dept)
	}

	fmt.Println(int(dept))
}

C++: #include <iostream>

using namespace std;

int main()
{
	int n, m;
	
	cin >> n;	
  m = 100000;
	for (int i = 0; i < n; i++) {
		m = m * 1.05;
		if (m % 1000 != 0){
			m = m - (m % 1000) + 1000;
		}
	}

	cout << m << endl;
}

C++: #include<iostream>
#include<math.h>
using namespace std;

int main(void){
    int i,n;
    double ans;
    cin >> n;
    ans=100.000;
    for(i=0;i<n;i++){
        ans*=1.05;
        cout << i+1 << ":::" << ans << "->";
        ans=(int)(ans+0.999);
        cout << ans << "->";
        ans=(double)ans;
        cout << ans << endl;
    }
    ans*=1000;
    printf("%d\n",int(ans));
    return 0;
}

C++: #include<iostream>

using namespace std;
   
void Loan()
{
    int m;
    int sum = 100000;
    int week;
    
    cin>>week;
    
    for(int i=0; i<week; i++)
    {
        sum = sum * 1.05;
        
        m = sum % 1000;
        
        if(m > 0)
        {
            sum = sum - m + 1000; 
        }
        
    }
    
   cout<<sum;
   return;
}
     
int main()
{     
    Loan();
    return 0;
}

C++: #include<iostream>
#include<cstdio>
#include<vector>
#include<string>
#include<algorithm>

using namespace std;

int main()
{
	int N; cin >> N;
	const int base = 100000;
	int ans = base;
	
	for(int i = 0; i < N; i++)
	{
		ans += (ans * 0.05);
		
		int diff = (ans % 1000);
		if( diff != 0 )ans += (1000 - diff);
	}
	
	cout << ans << endl;
	return 0;
}

C++: #include <iostream>

int main()
{
    int n;
    int debt = 100000;

    std::cin >> n;

    for (int i = 0; i < n; i++) {
        debt = 1000 * int(debt * 1.05 * 0.001 + 0.9);
    }

    std::cout << debt << std::endl;
}

C++: #include <iostream>
using namespace std;

int main(){
	int n, debt=100000;
	cin >> n;
	for(int i=0 ; i<n ; i++){
		debt*=1.05; //1555%1000=555
		if(debt%1000!=0) {
			debt-=debt%1000;
			debt+=1000;
		}
	}
	cout << debt << endl;
	return 0;
}

C++: #define _USE_MATH_DEFINES
#include<iostream>
#include<string>
#include<queue>
#include<cmath>
#include<map>
#include<set>
#include<list>
#include<iomanip>
#include<vector>
#include<random>
#include<functional>
#include<algorithm>
#include<stack>
#include<cstdio>
#include<bitset>
#include<unordered_map>
#include<climits>
#include<fstream>
using namespace std;
///////////////////library zone!!!!!!!!!!!!!!!!!!!!!!!!!!!!
typedef long long ll;
typedef long double ld;
#define all(a) (a).begin(),(a).end()
const ll Mod = 1000000007;
const ll mod = 998244353;
struct H {
	ll x, y;
	bool operator<(const H &b) const {
		if (x != b.x) return x < b.x;
		return y < b.y;
	}
	bool operator>(const H &b) const {
		if (x != b.x) return x > b.x;
		return y > b.y;
	}
	bool operator==(const H &b) const { return x == b.x&&y == b.y; }
	bool operator!=(const H &b) const { return (*this) != b; }
};
struct P {
	ll pos, cost;
	bool operator<(const P &b) const { return cost < b.cost; }
	bool operator>(const P &b) const { return cost > b.cost; }
};
struct B {
	ll to, cost;
};
struct E {
	ll from, to, cost;
	bool operator<(const E &b) const { return cost < b.cost; }
	bool operator>(const E &b) const { return cost > b.cost; }
};
template<typename T, typename U>
void chmin(T &a, U b) {
	if (a > b) a = b;
}
template<typename T, typename U>
void chmax(T &a, U b) {
	if (a < b) a = b;
}
template<typename T>
T max_0(T a) {
	if (a < 0) return 0;
	return a;
}
template<typename T>
T min_0(T a) {
	if (a > 0) return 0;
	return a;
}
ll read() {
	ll u;
	ll k = scanf("%lld", &u);
	return u;
}
ll gcd(ll i, ll j) {
	if (i > j) swap(i, j);
	if (i == 0) return j;
	return gcd(j%i, i);
}
ll mod_pow(ll x, ll n, ll p) {
	ll res = 1;
	while (n > 0) {
		if (n & 1) res = res * x % p;
		x = x * x % p;
		n >>= 1;
	}
	return res;
}//x^n%p
const ll Inf = 3023372036854775807;
const int inf = 1500000000;
#define int long long
//----------------------------------------------------
signed main() {
	int n;
	while (cin >> n) {
		int a = 100000;
		for (int i = 0; i < n; i++) {
			a = a * 105 / 100;
			if (a % 1000 > 0) {
				a = (a - a % 1000) + 1000;
			}
		}
		cout << a << endl;
	}
}

C++: #include <iostream>
#include <cmath>
#include <iomanip>

int main() {
	double m = 100;
	int n;

	std::cin >> n;
	for (int i = 0; i < n; ++i) {
		m *= 1.05;
		m = std::ceil(m);
	}
	std::cout << std::fixed << std::setprecision(0) << m * 1000 << std::endl;
	return 0;
}

C++: #include<stdio.h>
#include<string.h>

main(void){
    int money = 100000, num;
    
    scanf("%d", &num);
    
    for( ; num >= 0; num--){
        money += money * 0.05;
    }
    
    printf("%d\n", money);

    return 0;
}

C++: #include<iostream>
using namespace std;
int increase_debt(int debt,int n) {
	if(n==0) return debt;
	debt += debt*0.05;
	if(debt % 1000 != 0)
		debt += 1000 - debt % 1000;
	increase_debt(debt,n-1);
}
int main() {
	int n;
	cin >> n;
	cout << increase_debt(100000,n) << endl;
	return 0;
}

C++: #include <iostream>
using namespace std;

int main() {
	int weeks;
	cin >> weeks;
	double loan = 100000;
	for (int week = 0; week != weeks; ++week) {
		loan *= 1.05;
		if (int(loan) % 1000 != 0) 
			loan = (loan+1000)-int(loan+1000)%1000;
	}
	cout << loan << endl;
}

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

typedef long long int ll;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<pair<int, int> > vii;
#define rrep(i, m, n) for(int (i)=(m); (i)<(n);  (i)++)
#define  rep(i, n)    for(int (i)=0; (i)<(n);  (i)++)
#define  rev(i, n)    for(int (i)=(n)-1; (i)>=0; (i)--)
#define vrep(i, c)    for(__typeof((c).begin())i=(c).begin(); i!=(c).end(); i++)
#define  ALL(v)       (v).begin(), (v).end()
#define mp            make_pair
#define pb            push_back
template<class T1, class T2> inline void minup(T1& m, T2 x){ if(m>x) m=static_cast<T2>(x); }
template<class T1, class T2> inline void maxup(T1& m, T2 x){ if(m<x) m=static_cast<T2>(x); }

#define INF 1000000000
#define MOD 1000000009
#define EPS 1E-9

int n;
double res = 100000;

int main()
{
  cin >> n;

  while(n--){
    res *= 1.05;
    res = 1000 * ceil(res / 1000);
  }

  cout << res << endl;

  return 0;
}

C++: #include <iostream>
using namespace std;

int main(){
	int d = 100000, n;
	cin >> n;
	for(int i = 0; i < n; i++){
		d *= 1.05;
		if(d % 1000){
			d /= 1000;
			d *= 1000;
			d += 1000;
		}
	}
	cout << d << endl;
    return 0;
}

C++: #include<iostream>
#include<string>
#include<queue>
#include<stack>
using namespace std;
int main(){
	stack<int>st;
	bool bo=false;
	int n,a=10000;
	cin>>n;
	for(int i=0;i<n;i++){
		a+=a*0.05;
	}
	if(a%100==0 && a%10==0 && a%10==0){
		bo=true;
	}
	cout<<a<<endl;
	a/=1000;
	if(bo==true){
	}
	else if(bo==false){
		a=a+1;
	}
	cout<<a*1000<<endl;
	return 0;
}

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

C++: #include <iostream>
#include <cstdio>
#include <cstring>
using namespace std;

long int kane(int k){
	long int shakkin = 100000;
	for(int i=0;i<k;i++){
		shakkin = shakkin*1.05;
	if(shakkin%1000!=0)
		shakkin += 1000-(shakkin%1000);
	}
	return shakkin;
}

int main() {
	int n;
	cin >> n;
	cout << kane(n) << endl;
	return 0;
}

C++: #include<iostream>
using namespace std;

int main(){
  
  double n,mon=100000;
  cin>>n;
  for(int i=0;i<n;i++){
    mon=mon*1.05;
    mon=(mon+999)-(int(mon+999)%1000);
  }
  cout<<mon<<endl;   
  return 0;
}