C11111211113313112113313331333133313331322113312111133132321123231322321   >>    C1111121111331311211331333133313331333132211331211113313232112323132232   <<    C11111211113313112113313331333133313331322113312111133132321123231322323   >>      C11111211113313112113313331333133313331322113312111133132321123231322322   >>