C31232233133313221211113313331333133313122132313331323133313121   >>    C3123223313331322121111331333133313331312213231333132313331312   <<    C31232233133313221211113313331333133313122132313331323133313123   >>      C31232233133313221211113313331333133313122132313331323133313122   >>