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11X1X211XXXX1111
11X1X2X1XX1X1111
1121XXX1XXXX1X11
1121X211XX1X1X11
X111X211XXXX1X11
X111X2X1XX1X1X11
X1X1XX11XX1X1X11
X1X1XXX1XXXX1111
X1X1X211XX1X1111
X1X1X2X1XXXX1X11
X121XX11XXXX1111
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2111XX11XX1X1111
2111X2X1XXXX1111
21X1XX11XXXX1X11
21X1XXX1XX1X1X11
2121X211XX1X1X11
2121X2X1XXXX1111
