1 for (int c0 = 1; c0 <= 10; c0 += 1) { 2 for (int c1 = 1; c1 <= c0; c1 += 1) 3 S1(c0, c1); 4 for (int c1 = 11; c1 <= M; c1 += 1) 5 S2(c0, c1); 6 } 7