C11112331312111112111133133313331312111111322331333133313231333132331233131   >>    C1111233131211111211113313331333131211111132233133313331323133313233123313   <<    C11112331312111112111133133313331312111111322331333133313231333132331233133   >>      C11112331312111112111133133313331312111111322331333133313231333132331233132   >>