C111123313121111121111331333132313331323133313331323211321333132313231231   >>    C11112331312111112111133133313231333132313331333132321132133313231323123   <<    C111123313121111121111331333132313331323133313331323211321333132313231233   >>      C111123313121111121111331333132313331323133313331323211321333132313231232   >>