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2X212221111211M1
2X212222121111M1
21212222121111M1
21211221121211M1
212121221X1211M1
2121X21XX11211M1
2121X1X1XX1211M1
X1212XXX1X1211M1
X121XX111X1X11M1
X12121XXX11X11M1
X1X1XX1XX11X11M1
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2XX1XXXXXX1111M1
XX21XXXXXX1111M1
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