2X1212121X1XX222
1X12122X1X1XX222
X112121X1X1XX222
XX121222XX1XX222
11121212XX1XX222
2112122XXX1XX222
X1121222112XX222
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X11212221X22X222
2X1212221X1X1222
X11212121X1X1222
X112122X1X1X1222
11121222XX1X1222
X1121222111XXX22
X11212221X2XXX22
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