
기본 코드
start = int(input())
before = int(input())
after = int(input())
money = start
month = 1
while money < 70:
money += [빈칸]
month += 1
while [빈칸] < 100 :
[빈칸]
month += 1
print(month)
코드 풀이
start = int(input())
before = int(input())
after = int(input())
money = start
month = 1
while money < 70:
money += before
month += 1
while money < 100:
money += after
month += 1
print(month)