4(4 + R) - 3
21R + 17 + 30R + 25 - 2R
3 + 4R + 10
2(2 + 5R) - R
7(4R + 3) + 1 + 10R
5(1 + 2R) - R -1
6 + 5(3R) + 2R -1
5(5R + 6) - 3 - 2R
2R + 16 + 3(7R + 3) + 2
5 + 3R - 1 + 6R
6R + 5(6R + 4) + 2R + 2
7 + 26R - 3R - 6R - 2
4R + 9(5R + 1 + 4) - 3
3+ R + 4(4R) + 2
8R + 9 + 4(5 + 4R) - 2 - R
8R + 9R + 5
20R + 16(R) + 25 + 2R -3
7(7R + 6)
5(2R + 6) + 5(6R - 2) + 2 - 2R
(10 + 3R) + (R + 3)
7 + 5R + 4(R) - 3
