C11111333133313232233133313331333132313231121133132213232233231   >>    C1111133313331323223313331333133313231323112113313221323223323   <<    C11111333133313232233133313331333132313231121133132213232233233   >>      C11111333133313232233133313331333132313231121133132213232233232   >>