C1111233133313231133133313331323133313113313121111331333131231221   >>    C111123313331323113313331333132313331311331312111133133313123122   <<    C1111233133313231133133313331323133313113313121111331333131231223   >>      C1111233133313231133133313331323133313113313121111331333131231222   >>