C11111211113313112113313331333132313331322132333133313232233112111   >>    C1111121111331311211331333133313231333132213233313331323223311211   <<    C11111211113313112113313331333132313331322132333133313232233112113   >>      C11111211113313112113313331333132313331322132333133313232233112112   >>