#include <stdio.h>

#define NX 20

int N, K, st[ NX ];

int baga( int k ) {
	int i;

	if( k > K ) {
		for( i = 1; i <= K; i++ )
			printf( "%d ", st[i] );
		printf( "\n" );
		return 0;
	}

	for( i = st[k-1] + 1; i <= N - (K-k); i++ ) {
		st[k] = i;
		baga( k+1 );
	}
	return 0; //keeps compiler happy
}

int main() {
	freopen( "combinari.in", "r", stdin );
	freopen( "combinari.out", "w", stdout );

	scanf( "%d%d", &N, &K );
	baga( 1 );

	return 0;
}