C11111211113313112113313331333132313331322132333133313113313132211   >>    C1111121111331311211331333133313231333132213233313331311331313221   <<    C11111211113313112113313331333132313331322132333133313113313132213   >>      C11111211113313112113313331333132313331322132333133313113313132212   >>