C11111333133313232233133313331333132313231121133132312323132313231333121   >>    C1111133313331323223313331333133313231323112113313231232313231323133312   <<    C11111333133313232233133313331333132313231121133132312323132313231333123   >>      C11111333133313232233133313331333132313231121133132312323132313231333122   >>