C11111211113313112113313331333131133133313132313331322331123311   >>    C1111121111331311211331333133313113313331313231333132233112331   <<    C11111211113313112113313331333131133133313132313331322331123313   >>      C11111211113313112113313331333131133133313132313331322331123312   >>