I331323221311211331313233313331323221123313113313133313233232221   >>    I33132322131121133131323331333132322112331311331313331323323222   <<    I331323221311211331313233313331323221123313113313133313233232223   >>      I331323221311211331313233313331323221123313113313133313233232222   >>