#include <iostream>
#include <string>
using namespace std;
int N,M; //#balls, #draw
void draw(int n,int m, int*a){
for (int i=0;i<n;i++){
if (m==0){
for (int j=0;j<M;j++)
cout << a[j] << ' ';
cout << endl;
}
else{
a[M-m]=i;
draw(n,m-1,a);
}
}
}
int main () {
cin >> N >> M;
int *a = new int[M];
draw(N,M,a);
}
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