C3123223313331322121111331333133313231333132212111111221123231211   >>    C312322331333132212111133133313331323133313221211111122112323121   <<    C3123223313331322121111331333133313231333132212111111221123231213   >>      C3123223313331322121111331333133313231333132212111111221123231212   >>