C11112331312111112111133132313331333133313232212111113331333222221   >>    C1111233131211111211113313231333133313331323221211111333133322222   <<    C11112331312111112111133132313331333133313232212111113331333222223   >>      C11112331312111112111133132313331333133313232212111113331333222222   >>