include[HTML_REMOVED]
define N 20100403
using namespace std;
typedef long long ll;
int n,m;
ll f[1000010],invf[1000010],ans,tx=1;
ll qmi(ll x,ll y)
{
ll res=1;
while(y)
{
if(y&1) res=xres%N;
x=xx%N;
y>>=1;
}
return res;
}
int main()
{
cin>>m>>n;
for(int i=1,j=m+n+1;i<=n;i++,j–)
{
tx=txj%N;
tx=txqmi(i,N-2)%N;
}
ans=tx(m+1-n)%Nqmi(m+n+1,N-2)%N%N;
cout<<ans;
return 0;
}