2x2 + 5-1 + 67 + 56-12 + 89x35 =
2 * 2 + 5 - 1 + 67 + 56 - 12 + 89 * 35 = 4 + 115 + 3115 = 3234
2x2+5-1+67+56-12+89x35=3234