600

(0,-1)(600,-1)(600,1)(0,1)
(-1,-1)(1,-1)(1,601)(-1,601)
(0,598)(600,598)(600,601)(0,601)
(598,-1)(601,-1)(601,601)(598,601)
(177,-3)(183,-3)(183,63)(177,63)
(237,-3)(243,-3)(243,63)(237,63)
(417,-3)(423,-3)(423,63)(417,63)
(477,-3)(483,-3)(483,63)(477,63)
(57,57)(63,57)(63,123)(57,123)
(117,57)(123,57)(123,123)(117,123)
(237,57)(243,57)(243,123)(237,123)
(357,57)(363,57)(363,123)(357,123)
(477,57)(483,57)(483,123)(477,123)
(537,57)(543,57)(543,123)(537,123)
(57,117)(63,117)(63,183)(57,183)
(237,117)(243,117)(243,183)(237,183)
(297,117)(303,117)(303,183)(297,183)
(417,117)(423,117)(423,183)(417,183)
(537,117)(543,117)(543,183)(537,183)
(57,177)(63,177)(63,243)(57,243)
(357,177)(363,177)(363,243)(357,243)
(477,177)(483,177)(483,243)(477,243)
(57,237)(63,237)(63,303)(57,303)
(117,237)(123,237)(123,303)(117,303)
(297,237)(303,237)(303,303)(297,303)
(357,237)(363,237)(363,303)(357,303)
(417,237)(423,237)(423,303)(417,303)
(537,237)(543,237)(543,303)(537,303)
(57,297)(63,297)(63,363)(57,363)
(177,297)(183,297)(183,363)(177,363)
(297,297)(303,297)(303,363)(297,363)
(477,297)(483,297)(483,363)(477,363)
(117,357)(123,357)(123,423)(117,423)
(237,357)(243,357)(243,423)(237,423)
(297,357)(303,357)(303,423)(297,423)
(477,357)(483,357)(483,423)(477,423)
(57,417)(63,417)(63,483)(57,483)
(177,417)(183,417)(183,483)(177,483)
(237,417)(243,417)(243,483)(237,483)
(357,417)(363,417)(363,483)(357,483)
(477,417)(483,417)(483,483)(477,483)
(117,477)(123,477)(123,543)(117,543)
(297,477)(303,477)(303,543)(297,543)
(357,477)(363,477)(363,543)(357,543)
(417,477)(423,477)(423,543)(417,543)
(477,477)(483,477)(483,543)(477,543)
(237,537)(243,537)(243,603)(237,603)
(417,537)(423,537)(423,603)(417,603)
(60,57)(120,57)(120,63)(60,63)
(300,57)(360,57)(360,63)(300,63)
(120,117)(180,117)(180,123)(120,123)
(240,117)(300,117)(300,123)(240,123)
(360,117)(420,117)(420,123)(360,123)
(120,177)(180,177)(180,183)(120,183)
(180,177)(240,177)(240,183)(180,183)
(300,177)(360,177)(360,183)(300,183)
(420,177)(480,177)(480,183)(420,183)
(480,177)(540,177)(540,183)(480,183)
(60,237)(120,237)(120,243)(60,243)
(120,237)(180,237)(180,243)(120,243)
(180,237)(240,237)(240,243)(180,243)
(240,237)(300,237)(300,243)(240,243)
(360,237)(420,237)(420,243)(360,243)
(240,297)(300,297)(300,303)(240,303)
(420,297)(480,297)(480,303)(420,303)
(480,297)(540,297)(540,303)(480,303)
(60,357)(120,357)(120,363)(60,363)
(180,357)(240,357)(240,363)(180,363)
(300,357)(360,357)(360,363)(300,363)
(360,357)(420,357)(420,363)(360,363)
(540,357)(600,357)(600,363)(540,363)
(120,417)(180,417)(180,423)(120,423)
(360,417)(420,417)(420,423)(360,423)
(420,417)(480,417)(480,423)(420,423)
(480,417)(540,417)(540,423)(480,423)
(60,477)(120,477)(120,483)(60,483)
(180,477)(240,477)(240,483)(180,483)
(240,477)(300,477)(300,483)(240,483)
(540,477)(600,477)(600,483)(540,483)
(0,537)(60,537)(60,543)(0,543)
(120,537)(180,537)(180,543)(120,543)
(180,537)(240,537)(240,543)(180,543)
(300,537)(360,537)(360,543)(300,543)
(480,537)(540,537)(540,543)(480,543)