C1111121111331311211331333133313231333132213233313331323233232321   >>    C111112111133131121133133313331323133313221323331333132323323232   <<    C1111121111331311211331333133313231333132213233313331323233232323   >>      C1111121111331311211331333133313231333132213233313331323233232322   >>