1704. Clever turtle

#include <bits/stdc++.h>

using namespace std;

#define int long long
#define mp make_pair
#define pb push_back

const int N = 33;
const int INF = (int)1e18;

int dp[N][N];

signed main()
{
    ios::sync_with_stdio(0); cin.tie(nullptr); cout.tie(nullptr);
    //freopen("input.txt","r",stdin);
    //freopen("output.txt","w",stdout);

    int n,m;
    cin >> n >> m;

    dp[1][1] = 1;

    for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=m;j++)
        {
            dp[i][j] += dp[i-1][j] + dp[i][j-1];
        }
    }

    cout << dp[n][m];

    return 0;
}