C11111333133313232233133313331333132313231121133132312323132313232321   >>    C1111133313331323223313331333133313231323112113313231232313231323232   <<    C11111333133313232233133313331333132313231121133132312323132313232323   >>      C11111333133313232233133313331333132313231121133132312323132313232322   >>