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2X12121X11111111
1X21121X21122211
21221X2122X1X111
X1X11X1X2X111111
X1XXXXX22X111111
1112112X21X1X122
1X2211XX11X11122
21121112211X1122
X11111222111XX22
21X2X1212X111X22
1XX2X1221112X222
