C11111211113313112113313331333133313331333132313331333132313331333131121232221   >>    C1111121111331311211331333133313331333133313231333133313231333133313112123222   <<    C11111211113313112113313331333133313331333132313331333132313331333131121232223   >>      C11111211113313112113313331333133313331333132313331333132313331333131121232222   >>