CODE

#include<bits/stdc++.h>
using namespace std;
const int MOD = 100003;
const int N = 105;
int dp[N];
int main(){
    int n, k;
    cin >> n >> k;
    dp[0] = 1;
    for(int i = 1; i <= n; i++){
        dp[i] = 0;
        for(int j = 1; j <= k; j++){
            if(i - j >= 0){
                dp[i] = (dp[i] + dp[i-j]) % MOD;
            }
        }
    }
    
    cout << dp[n];
    return 0;
}