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#include <cstdio>
int n, k;
int v[19];
void generare(int a);
void Afisare();
FILE *fout = fopen("combinari.out", "w");
int main() {
FILE *fin = fopen("combinari.in", "r");
fscanf(fin, "%d%d", &n, &k);
fclose(fin);
generare(0);
return 0;
}
void generare(int a) {
if (a == k) {
Afisare();
} else {
for (int i = v[a] + 1; i <= n; i++) {
v[a + 1] = i;
generare(a + 1);
}
}
}
void Afisare() {
for (int i = 1; i <= k; i++)
fprintf(fout, "%d ", v[i]);
fprintf(fout, "\n");
}