Problema F: Fractions are better when continued

Code (Solución)

# | competition: "2024 ICPC Brazil Subregional"
# | problem_id: "F"
# | title: "Fractions are better when continued"

N = int(input())
a, b, c = 1, 1, 1
for i in range(N):
    c = a + b
    a, b = b, c
print(a)