1X11X11X1XXX2112
1X112X12X1111112
1X1XXX1211XX1112
1X1X211XXX112112
1211XX1XXX1X1112
1211211211X12112
121XX112X11X2112
121X2X1X1XX11112
XX11X112XXX11112
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XX1XXX1XX1X12112
XX1X21121X1X1112
X211XX121X112112
X211211XX1XX1112
X21XX11X11111112
X21X2X12XXXX2112
