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X1112212X21XX121
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1XX12122XXX12121
1X1XX12X2X112121
1X1121121X2XX221
1X112122XX122X21
1X2111121X2X2221
11X1XX2X212X2121
11X1X1X12XX12221
11X121X2XXX12121
11X121X21XX22221
11X121X22X1XX121
11X122X1X212X121
111XXX2121XX2121
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