I331323221311211331313233313331323132322121123313233313232212121   >>    I33132322131121133131323331333132313232212112331323331323221212   <<    I331323221311211331313233313331323132322121123313233313232212123   >>      I331323221311211331313233313331323132322121123313233313232212122   >>