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#include <stdio.h>
#define N_MAX 18
int N, K, t[N_MAX+1];
void print(){
for(int i = 1; i <= K; i++){
printf("%d ", t[i]);
}
printf("\n");
}
void bk(int initVal, int pos){
if(pos > K){
print();
} else {
for(int i = initVal+1; i <= N; i++){
t[pos] = i;
bk(i, pos+1);
}
}
}
int main(){
freopen("combinari.in", "r", stdin);
freopen("combinari.out", "w", stdout);
scanf("%d%d", &N, &K);
bk(0,1);
return 0;
}