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X121X112111XX121
1121X112X211X221
X111X11XX21XX221
1111X1122X1XX221
X121X11X2X11X221
1121X11X221XXX21
X111X1122211XX21
1121XX1X111XX221
X111XX121111X221
1111XX12121XX121
X121XX1X1211X121
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1121XX122111X121
X111XX1X211XX121
1121X2121X11XX21
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1121X21XXX1XX121
X111X212XX11X121
1111X21X2211X221
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