C11111333133313232233133313331333132313231121133132322231323321   >>    C1111133313331323223313331333133313231323112113313232223132332   <<    C11111333133313232233133313331333132313231121133132322231323323   >>      C11111333133313232233133313331333132313231121133132322231323322   >>