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for (int c0 = max(0, 32 * h0 - 1991); c0 <= min(999, 32 * h0 + 31); c0 += 1) if ((32 * h0 - c0 + 32) % 64 >= 1) for (int c1 = 0; c1 <= 999; c1 += 1) S1(c0, c1);