C11112331312111112111133132313331333133313232212111112111113213232332113231   >>    C1111233131211111211113313231333133313331323221211111211111321323233211323   <<    C11112331312111112111133132313331333133313232212111112111113213232332113233   >>      C11112331312111112111133132313331333133313232212111112111113213232332113232   >>