C111123313331323113313331331121111331323132322331333131121131211211   >>    C11112331333132311331333133112111133132313232233133313112113121121   <<    C111123313331323113313331331121111331323132322331333131121131211213   >>      C111123313331323113313331331121111331323132322331333131121131211212   >>