C111123313331323113313331333133313331323133112113313232212111113113221   >>    C11112331333132311331333133313331333132313311211331323221211111311322   <<    C111123313331323113313331333133313331323133112113313232212111113113223   >>      C111123313331323113313331333133313331323133112113313232212111113113222   >>