1234567890

1 - 2 * 3 + 4 % 5 * 6 - 7

-3 - 4 * -5

((8 * 7) -- (6 + 5)) / -(4 - -3)

11 - 5 - 3 + ((2 + 2) * 3)

4 \
  + ( (14 * (6 + 12 + 2 * 16)) + 9 ) \
      * (11 * (3 + 21) + 15 * 8 * 13) \
      * 19 \
  + 5 * 18 \
  + 1 \
  + 10 * (7 + 17) \
  + 20
