C11112331333132311331333133313331333132313231123313331312111111312131   >>    C1111233133313231133133313331333133313231323112331333131211111131213   <<    C11112331333132311331333133313331333132313231123313331312111111312133   >>      C11112331333132311331333133313331333132313231123313331312111111312132   >>