Line L1 of slope 2 and line L2 of slope 21 intersect at the origin O. In the first quadrant, P1,P2,…,P12 are 12 points on line L1 and Q1,Q2,…,Q9 are 9 points on line L2. Then the total number of triangles, that can be formed having vertices at three of the 22 points O, P1,P2,…,P12, Q1,Q2,…,Q9, is: