2.a1,4c2,4.a1,16d2,16e2,4d2,4a1,1a1,4.g1,8a1,4.d1,8g1,2.a1,4c2,4.a1,16d2, 16e2,4d2,4a1,1a1,4.g1,8a1,4.d1,8g1,4.a1