C11112331312111112111133133313331333133322131131211113313112113313331323223311   >>    C1111233131211111211113313331333133313332213113121111331311211331333132322331   <<    C11112331312111112111133133313331333133322131131211113313112113313331323223313   >>      C11112331312111112111133133313331333133322131131211113313112113313331323223312   >>