N = int(input()) d = 0
for i in range(n):
a , b= [int(i) for i in input().split()]
for s in range(i):
if (a[i] <= mac) and (b[i] >= moc):
d = d + 1
mac = a[i]
moc = b[i]
print(mac, moc)
выдает ошибку Traceback (most recent call last):
File "C:/Users/gleb/Documents/F. Ноутбуки.py", line 9, in
if (a[i] <= mac) and (b[i] >= moc):
TypeError: 'int' object is not subscriptable
на python