Problem: find the sum of first 70 odd numbers
Rationale: "explanation : n 2 = 702 = 4900 answer : option a"
annotated_formula: add(divide(divide(70, divide(divide(divide(divide(divide(70, const_2), const_2), const_2), const_2), const_2)), const_2), add(const_1, sqrt(divide(divide(70, divide(divide(divide(divide(divide(70, const_2), const_2), const_2), const_2), const_2)), const_2))))