××××2××2×2×2×××
××7×11×7×2×1×1×1×7××
×4×2×2×1×9×7×7×7×6×12×4
××7
××9
×2×2
×2×2
×2×2
××9
×4×2
×8×2
×1×9
×1×9
×1×9
×1×7
×2×6
××7