#include<bits/stdc++.h>
using ll  = long long;
#define int ll
#define rep(i,n) for(int i=0;i<n;i++)
#define loop(i,s,n) for(int i=s;i<n;i++)
#define erep(e,v) for(auto && e :v)
#define all(in) in.begin(), in.end()
#define MP make_pair
#define INF (sizeof(int) == 4 ? (int)1e9:(int)1e18)
#define EPS 0.0000000001
using namespace std;
template<class T, class S> void cmin(T &a, const S &b) { if (a > b)a = b; }
template<class T, class S> void cmax(T &a, const S &b) { if (a < b)a = b; }
template<typename Head, typename Value> auto vectors(const Head &head, const Value &v) { return vector<Value>(head, v); }
template<typename Head, typename... Tail> auto vectors(Head x, Tail... tail) { auto inner = vectors(tail...); return vector<decltype(inner)>(x, inner); }
template<class T> void join(T a){for(auto itr :a){if(itr != *a.begin())cout << " "; cout << itr;} }
using ld  = long double;
using pii = pair<int,int>;
using piii = pair<int,pii>;
int W,H;
int dx[]={0,0,1,-1}, dy[]={1,-1,0,0};
bool valid(int x,int y){return (0<=x&&x<W)&&(0<=y&&y<H);}
signed main(){
    int n,s;
    auto dp = vectors(11,1001,0LL);
    // dp[i][j] := used i number, and the SUM is j
    dp[0][0] = 1;
    for(int num = 0; num <= 100;num++){
        for(int k = 9; k>= 0;--k){
            for(int crt = 0; crt <= 1000;crt++){
                if(dp[k][crt] != 0 and crt + num <= 1000){
                    dp[k+1][crt + num] += dp[k][crt];
                }
            }
        }
    }
    while(cin >> n >> s,n+s){
        cout << dp[n][s] << endl;
    }
}



