C11112331333132311331333132313331333133313233111211113313113313132333131   >>    C1111233133313231133133313231333133313331323311121111331311331313233313   <<    C11112331333132311331333132313331333133313233111211113313113313132333133   >>      C11112331333132311331333132313331333133313233111211113313113313132333132   >>