C11111211113313112113313331333132313331322132333133313331311331132321   >>    C1111121111331311211331333133313231333132213233313331333131133113232   <<    C11111211113313112113313331333132313331322132333133313331311331132323   >>      C11111211113313112113313331333132313331322132333133313331311331132322   >>