C312322331333132212111133133313331312111133132313331333131123313232223231   >>    C31232233133313221211113313331333131211113313231333133313112331323222323   <<    C312322331333132212111133133313331312111133132313331333131123313232223233   >>      C312322331333132212111133133313331312111133132313331333131123313232223232   >>