C11111211113313112113313331311211331333133313331333133313231333132233311   >>    C1111121111331311211331333131121133133313331333133313331323133313223331   <<    C11111211113313112113313331311211331333133313331333133313231333132233313   >>      C11111211113313112113313331311211331333133313331333133313231333132233312   >>