C11111333133313232233133313331333132313331323321313331333131121133132312323231   >>    C1111133313331323223313331333133313231333132332131333133313112113313231232323   <<    C11111333133313232233133313331333132313331323321313331333131121133132312323233   >>      C11111333133313232233133313331333132313331323321313331333131121133132312323232   >>