#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)

long long A[28],B[28];
 
int n,k,p1=998,p2=998244352,t;


void f(int i,int l,long long ans,long long ans1){
    if(l==k){if(ans>=ans1){t++;t%=p1;}}
    else{
        for(int j=i+1;j<n;j++){
            f(j,l+1, (ans+A[j])%p1 , (ans1+B[j])%p2 );
        }
    }
}

int main(){cin>>n>>k;
    rep(i,n){cin>>A[i];B[i]=A[i]%p2;A[i]%=p1;}
    for(int i=0;i<=n-k;i++){
        f(i,1,A[i],B[i]);
    }
    cout<<t<<endl;
}