C11111211113313112113313331333132313331322132333133313113313223312111   >>    C1111121111331311211331333133313231333132213233313331311331322331211   <<    C11111211113313112113313331333132313331322132333133313113313223312113   >>      C11111211113313112113313331333132313331322132333133313113313223312112   >>