Buggy python submission (verdict: Runtime Error):
import sys
from fractions import gcd
from collections import deque

input = sys.stdin.readline

N = int(input())
a = [int(x) for x in input().rstrip("\n").split()]
q = deque(a)

while len(q) > 1:
    x = q.popleft()
    y = q.popleft()
    z =  fractions.gcd(x, y)
    q.append(z)

ans = q.popleft()
print(ans)

Fixed submission:
import sys
import fractions
from collections import deque

input = sys.stdin.readline

N = int(input())
a = [int(x) for x in input().rstrip("\n").split()]
q = deque(a)

while len(q) > 1:
    x = q.popleft()
    y = q.popleft()
    z =  fractions.gcd(x, y)
    q.append(z)

ans = q.popleft()
print(ans)

Buggy python submission (verdict: Runtime Error):
import sys
from fractions import math
from collections import deque

input = sys.stdin.readline

N = int(input())
a = [int(x) for x in input().rstrip("\n").split()]
q = deque(a)

while len(q) > 1:
    x = q.popleft()
    y = q.popleft()
    z =  math.gcd(x, y)
    q.append(z)

ans = q.popleft()
print(ans)

Fixed submission:
import sys
import fractions
from collections import deque

input = sys.stdin.readline

N = int(input())
a = [int(x) for x in input().rstrip("\n").split()]
q = deque(a)

while len(q) > 1:
    x = q.popleft()
    y = q.popleft()
    z =  fractions.gcd(x, y)
    q.append(z)

ans = q.popleft()
print(ans)

Buggy python submission (verdict: Runtime Error):
import sys
import math
from collections import deque

input = sys.stdin.readline

N = int(input())
a = [int(x) for x in input().rstrip("\n").split()]
q = deque(a)

while len(q) > 1:
    x = q.popleft()
    y = q.popleft()
    z =  math.gcd(x, y)
    q.append(z)

ans = q.popleft()
print(ans)

Fixed submission:
import sys
import fractions
from collections import deque

input = sys.stdin.readline

N = int(input())
a = [int(x) for x in input().rstrip("\n").split()]
q = deque(a)

while len(q) > 1:
    x = q.popleft()
    y = q.popleft()
    z =  fractions.gcd(x, y)
    q.append(z)

ans = q.popleft()
print(ans)

Buggy python submission (verdict: Runtime Error):
import sys
import math
from collections import deque

input = sys.stdin.readline

N = int(input())
a = [int(x) for x in input().rstrip("\n").split()]
q = deque(a)

while len(q) > 1:
    x = q.popleft()
    y = q.popleft()
    z =  math.gcd(x, y)
    q.append(z)

ans = q.popleft()
print(ans)

Fixed submission:
import sys
import fractions
from collections import deque

input = sys.stdin.readline

N = int(input())
a = [int(x) for x in input().rstrip("\n").split()]
q = deque(a)

while len(q) > 1:
    x = q.popleft()
    y = q.popleft()
    z =  fractions.gcd(x, y)
    q.append(z)

ans = q.popleft()
print(ans)

Buggy python submission (verdict: Runtime Error):
import sys
import math
from collections import deque

input = sys.stdin.readline

N = int(input())
a = [int(x) for x in input().split()]
q = deque(a)

while len(q) > 1:
    x = q.popleft()
    y = q.popleft()
    z =  math.gcd(x, y)
    q.append(z)

ans = q.popleft()
print(ans)

Fixed submission:
import sys
import fractions
from collections import deque

input = sys.stdin.readline

N = int(input())
a = [int(x) for x in input().rstrip("\n").split()]
q = deque(a)

while len(q) > 1:
    x = q.popleft()
    y = q.popleft()
    z =  fractions.gcd(x, y)
    q.append(z)

ans = q.popleft()
print(ans)