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111111X122X21X21
1111112X22121X21
1111112X22XX1121
1111X1XX22121121
1111X1XX22XX1X21
1111X121221X1X21
1111X12122X21121
111X11XX221X1X21
111X11XX22X21121
111X112122121121
111X112122XX1X21
111XX1X122121X21
111XX1X122XX1121
111XX12X221X1121
111XX12X22X21X21
