C11111211113313112113313331333133313331333132313331333132313233313111   >>    C1111121111331311211331333133313331333133313231333133313231323331311   <<    C11111211113313112113313331333133313331333132313331333132313233313113   >>      C11111211113313112113313331333133313331333132313331333132313233313112   >>