C11111211113313112113313331333133313331333132313331333133313331322333223221   >>    C1111121111331311211331333133313331333133313231333133313331333132233322322   <<    C11111211113313112113313331333133313331333132313331333133313331322333223223   >>      C11111211113313112113313331333133313331333132313331333133313331322333223222   >>