import time

lst = [(num**2 + 1)%101 for num in range(1000000)]

t1 = time.perf_counter_ns()
s1 = sum(lst)
t2 = time.perf_counter_ns()
s2 = 0
for num in lst:
    s2 += num
t3 = time.perf_counter_ns()

print('sum() took', (t2-t1)*1e-9,'seconds to compute', s1)
print('loop took', (t3-t2)*1e-9,'seconds to compute', s2)
print('sum() is around', round((t3-t2)/(t2-t1),1),'times faster')