C11111211113313112113313331333132313331322132333133313231333131323111   >>    C1111121111331311211331333133313231333132213233313331323133313132311   <<    C11111211113313112113313331333132313331322132333133313231333131323113   >>      C11111211113313112113313331333132313331322132333133313231333131323112   >>