C11111211113313112113313331333133313331333132313331333133313231333131133232331   >>    C1111121111331311211331333133313331333133313231333133313331323133313113323233   <<    C11111211113313112113313331333133313331333132313331333133313231333131133232333   >>      C11111211113313112113313331333133313331333132313331333133313231333131133232332   >>