#include<stdio.h>
int n,k,v[20];

void tipar(){
    for(int i=1;i<=k;i++)
        printf("%d ",v[i]);
    printf("\n");
}

void solve(int niv){
    if(niv==k+1) tipar();
    else {
        for(int i=v[niv-1]+1;i<=n;i++){
            v[niv]=i;
            solve(niv+1);
        }
    }
}

int main(){
    freopen("combinari.in","r",stdin);
    freopen("combinari.out","w",stdout);
    scanf("%d %d",&n,&k);
    solve(1);
    return 0;
}