C312322331333132212111133133313331323133313331333131211113313231231231   >>    C31232233133313221211113313331333132313331333133313121111331323123123   <<    C312322331333132212111133133313331323133313331333131211113313231231233   >>      C312322331333132212111133133313331323133313331333131211113313231231232   >>