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X122121X11221X11
X12212111X111X11
X12212111X221X11
X122122XX1111X11
X122122XX1221X11
1122X21X11111X11
1122X21X11221X11
1122X2111X111X11
1122X2111X221X11
1122X22XX1111X11
1122X22XX1221X11
212X121X11111X11
212X121X11221X11
212X12111X111X11
212X12111X221X11
212X122XX1111X11
212X122XX1221X11
