C11112331333132311331333133313331333132313231133132322331313121   >>    C1111233133313231133133313331333133313231323113313232233131312   <<    C11112331333132311331333133313331333132313231133132322331313123   >>      C11112331333132311331333133313331333132313231133132322331313122   >>