C312322331333132212111133133313331323133313233313331333131111233133312231   >>    C31232233133313221211113313331333132313331323331333133313111123313331223   <<    C312322331333132212111133133313331323133313233313331333131111233133312233   >>      C312322331333132212111133133313331323133313233313331333131111233133312232   >>