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1X22XX11X2X2111M
X1X1X1X21X121XMM
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X1X121X21X121XMM
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2122212X1XXX112M
112X211112XX122M
212122X1X2121112
X12221112111112M
X1212212X111112M
112221X2X211112M
X12X1122X1221122
212X12X11X121121
