C11112331333132311331333133313331323132313331211111333132322131211   >>    C1111233133313231133133313331333132313231333121111133313232213121   <<    C11112331333132311331333133313331323132313331211111333132322131213   >>      C11112331333132311331333133313331323132313331211111333132322131212   >>