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#include <bits/stdc++.h>
#define mod 2000003
using namespace std;
ifstream f ("sandokan.in");
ofstream g ("sandokan.out");
typedef long long ll;
int n,k,c[5003][5003],v[5003];
int main()
{
f>>n>>k;
for(int i=1;i<=n;++i) f>>v[i];
c[1][1]=1;
for(int i=2;i<=n;++i)
{
c[i][1]=c[i][i]=1;
for(int j=2;j<i;++j) c[i][j]=(c[i-1][j]+c[i-1][j-1])%mod;
}
g<<c[n][k];
return 0;
}