C312322331333132212111133133313331312111133132233132332313231211   >>    C31232233133313221211113313331333131211113313223313233231323121   <<    C312322331333132212111133133313331312111133132233132332313231213   >>      C312322331333132212111133133313331312111133132233132332313231212   >>