C1111233131211111211113313331333133313331322322331312111111331323131121   >>    C111123313121111121111331333133313331333132232233131211111133132313112   <<    C1111233131211111211113313331333133313331322322331312111111331323131123   >>      C1111233131211111211113313331333133313331322322331312111111331323131122   >>