C11112331333132311331333133313331333132313231133132313112111111   >>    C1111233133313231133133313331333133313231323113313231311211111   <<    C11112331333132311331333133313331333132313231133132313112111113   >>      C11112331333132311331333133313331333132313231133132313112111112   >>