I331323221311211331313232233132311211331323132311331323223312121   >>    I33132322131121133131323223313231121133132313231133132322331212   <<    I331323221311211331313232233132311211331323132311331323223312123   >>      I331323221311211331313232233132311211331323132311331323223312122   >>