C11111211113313112113313331333133313331333132313331333133313331311233131213231   >>    C1111121111331311211331333133313331333133313231333133313331333131123313121323   <<    C11111211113313112113313331333133313331333132313331333133313331311233131213233   >>      C11111211113313112113313331333133313331333132313331333133313331311233131213232   >>