a := 12 b := 8 + a / 2 a := a – b / 2
a := 4 b := 8 + 2 * a a := b / 2 * a
a := 4 b := 9 b := 6 * b – a a := b / 5 * 3 – a
a := 4 b := 15 a := b - a * 3 b := 24 / a * 4
f := 21 e := 10 f := 5 * f + 5 e := f – 10 – e * 5
a := 20 b := 1 a := (a + b) / 3 b := a - 2 * b a := a - b
a := 14 b := 4 a := a / 2 - b b := (a * b) / 2 b := a + b
b := 3 a := -8 b := 7 - a + b a := a / 2 + b
a := 7 b := 5 a := b * 4 b := a * 4
b := 8 a := 10 b := b + a * 2 a := 29 - a