C1111233133313231133133313331333132313231333121111331122112323112111   >>    C111123313331323113313331333133313231323133312111133112211232311211   <<    C1111233133313231133133313331333132313231333121111331122112323112113   >>      C1111233133313231133133313331333132313231333121111331122112323112112   >>