DiceComb.cpp

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


int main()
{
    int mod = 1e9+7;
    int n;
    cin>>n;
    vector<int> dp(n+1,0);
    dp[0] = 1;
    for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=6;j++)
        {
            if(i-j>=0)
            {
                dp[i] = (dp[i] + dp[i-j])%mod;
            }
        }
    }
    cout<<dp[n]<<endl;
}