#include <cstdio>
#define DN 20
int n,m,c[DN];

void afisare() {
    for(int i=1; i<=m; i++) printf("%d ",c[i]);
    printf("\n");
}

void gc(int k) {
    if(k-1==m) afisare();
    else for(int i=c[k-1]+1;i<=n-m+k; i++) {
        c[k]=i;
        gc(k+1);
    }
}

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