#include <cstdio>

int st[20],n, k;

void afisare( FILE *g ) {
    for( int i = 1 ; i <= k ; ++i )
        fprintf( g, "%d ", st[i] );
    fprintf( g, "\n" );
}

void back( int niv, FILE *g ) {

    if( niv == k + 1 )
        afisare( g );
    else
    for( int i = st[niv - 1] + 1 ; i <= n - k + niv ; ++i ) {
        st[niv] = i;
        back( niv + 1, g );
    }
}

int main () {
    FILE *f, *g;
    f = fopen( "combinari.in", "r" );
    g = fopen( "combinari.out", "w" );

    fscanf( f, "%d%d", &n, &k );

    back( 1, g );

    fclose( f );
    fclose( g );

    return 0;

}