#include <stdio.h>

int N, K;
int C[32];

void generate(int k)
{
    if (k > K)
    {
        // Afiseaza combinatia curenta
        for (int i = 1; i <= K; ++i)
        {
            printf("%d ", C[i]);
        }
        
        printf("\n");
    }
    else
    {
        for (int i = C[k-1] + 1; i <= N-(K-k); ++i)
        {
            C[k] = i;
            generate(k+1);
        }    
    }
}


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