Buggy python submission (verdict: Runtime Error):
#!/usr/bin/env python3
import sys
import bisect

inf = float('inf')


# Generated by 1.1.4 https://github.com/kyuridenamida/atcoder-tools  (tips: You use the default template now. You can remove this line by using your custom template)
def main():
    def iterate_tokens():
        for line in sys.stdin:
            for word in line.split():
                yield word
    tokens = iterate_tokens()
    A = int(next(tokens))  # type: int
    B = int(next(tokens))  # type: int
    Q = int(next(tokens))  # type: int
    s = [ int(next(tokens)) for _ in range(A) ]  # type: "List[int]"
    t = [ int(next(tokens)) for _ in range(B) ]  # type: "List[int]"
    for _ in range(Q):
        q = int(next(tokens))
        i_s = bisect.bisect(s, q)
        i_t = bisect.bisect(t, q)

        s_l = q - s[i_s-1] if i_s > 0 else inf
        s_r = s[i_s] - q if i_s < A else inf
        t_l = q - t[i_t-1] if i_t > 0 else inf
        t_r = t[i_t] - q if i_t < A else inf

        # 同じ方向に行く場合
        sltl = max([s_l, t_l])
        srtr = max([s_r, t_r])

        # 違う方向に行く場合
        sltr = min([s_l, t_r]) + sum([s_l, t_r])
        srtl = min([s_r, t_l]) + sum([s_r, t_l])

        min_d = min([sltl, srtr, sltr, srtl])

        print(min_d)

if __name__ == '__main__':
    main()


Fixed submission:
#!/usr/bin/env python3
import sys
import bisect

inf = float('inf')

def solve(A: int, B: int, Q: int, s: "List[int]", t: "List[int]", x: "List[int]"):
    for q in x:
        i_s = bisect.bisect(s, q)
        i_t = bisect.bisect(t, q)

        s_l = q - s[i_s-1] if i_s > 0 else inf
        s_r = s[i_s] - q if i_s < A else inf
        t_l = q - t[i_t-1] if i_t > 0 else inf
        t_r = t[i_t] - q if i_t < B else inf

        # 同じ方向に行く場合
        sltl = max([s_l, t_l])
        srtr = max([s_r, t_r])

        # 違う方向に行く場合
        sltr = min([s_l, t_r]) + sum([s_l, t_r])
        srtl = min([s_r, t_l]) + sum([s_r, t_l])

        min_d = min([sltl, srtr, sltr, srtl])

        print(min_d)
        
    return


# Generated by 1.1.4 https://github.com/kyuridenamida/atcoder-tools  (tips: You use the default template now. You can remove this line by using your custom template)
def main():
    def iterate_tokens():
        for line in sys.stdin:
            for word in line.split():
                yield word
    tokens = iterate_tokens()
    A = int(next(tokens))  # type: int
    B = int(next(tokens))  # type: int
    Q = int(next(tokens))  # type: int
    s = [ int(next(tokens)) for _ in range(A) ]  # type: "List[int]"
    t = [ int(next(tokens)) for _ in range(B) ]  # type: "List[int]"
    x = [ int(next(tokens)) for _ in range(Q) ]  # type: "List[int]"
    solve(A, B, Q, s, t, x)

if __name__ == '__main__':
    main()

Buggy python submission (verdict: Runtime Error):
#!/usr/bin/env python3
import sys
import bisect

inf = float('inf')

def solve(A: int, B: int, Q: int, s: "List[int]", t: "List[int]", x: "List[int]"):
    for q in x:
        i_s = bisect.bisect(s, q)
        i_t = bisect.bisect(t, q)

        s_l = q - s[i_s-1] if i_s > 0 else inf
        s_r = s[i_s] - q if i_s < A else inf
        t_l = t_l = q - t[i_t-1] if i_t > 0 else inf
        t_r = t[i_t] - q if i_t < A else inf

        # 同じ方向に行く場合
        sltl = max([s_l, t_l])
        srtr = max([s_r, t_r])

        # 違う方向に行く場合
        sltr = min([s_l, t_r]) + sum([s_l, t_r])
        srtl = min([s_r, t_l]) + sum([s_r, t_l])

        min_d = min([sltl, srtr, sltr, srtl])

        print(min_d)
        
    return


# Generated by 1.1.4 https://github.com/kyuridenamida/atcoder-tools  (tips: You use the default template now. You can remove this line by using your custom template)
def main():
    def iterate_tokens():
        for line in sys.stdin:
            for word in line.split():
                yield word
    tokens = iterate_tokens()
    A = int(next(tokens))  # type: int
    B = int(next(tokens))  # type: int
    Q = int(next(tokens))  # type: int
    s = [ int(next(tokens)) for _ in range(A) ]  # type: "List[int]"
    t = [ int(next(tokens)) for _ in range(B) ]  # type: "List[int]"
    x = [ int(next(tokens)) for _ in range(Q) ]  # type: "List[int]"
    solve(A, B, Q, s, t, x)

if __name__ == '__main__':
    main()


Fixed submission:
#!/usr/bin/env python3
import sys
import bisect

inf = float('inf')

def solve(A: int, B: int, Q: int, s: "List[int]", t: "List[int]", x: "List[int]"):
    for q in x:
        i_s = bisect.bisect(s, q)
        i_t = bisect.bisect(t, q)

        s_l = q - s[i_s-1] if i_s > 0 else inf
        s_r = s[i_s] - q if i_s < A else inf
        t_l = q - t[i_t-1] if i_t > 0 else inf
        t_r = t[i_t] - q if i_t < B else inf

        # 同じ方向に行く場合
        sltl = max([s_l, t_l])
        srtr = max([s_r, t_r])

        # 違う方向に行く場合
        sltr = min([s_l, t_r]) + sum([s_l, t_r])
        srtl = min([s_r, t_l]) + sum([s_r, t_l])

        min_d = min([sltl, srtr, sltr, srtl])

        print(min_d)
        
    return


# Generated by 1.1.4 https://github.com/kyuridenamida/atcoder-tools  (tips: You use the default template now. You can remove this line by using your custom template)
def main():
    def iterate_tokens():
        for line in sys.stdin:
            for word in line.split():
                yield word
    tokens = iterate_tokens()
    A = int(next(tokens))  # type: int
    B = int(next(tokens))  # type: int
    Q = int(next(tokens))  # type: int
    s = [ int(next(tokens)) for _ in range(A) ]  # type: "List[int]"
    t = [ int(next(tokens)) for _ in range(B) ]  # type: "List[int]"
    x = [ int(next(tokens)) for _ in range(Q) ]  # type: "List[int]"
    solve(A, B, Q, s, t, x)

if __name__ == '__main__':
    main()

Buggy python submission (verdict: Runtime Error):
#!/usr/bin/env python3
import sys
import bisect

inf = float('inf')

def solve(A: int, B: int, Q: int, s: "List[int]", t: "List[int]", x: "List[int]"):
    s.sort()
    t.sort()
    for q in x:
        i_s = bisect.bisect(s, q)
        i_t = bisect.bisect(t, q)
        s_l = inf
        if i_s > 0:
            s_l = q - s[i_s-1]
        s_r = inf
        if i_s < A:
            s_r = s[i_s] - q
        t_l = inf
        if i_t > 0:
            t_l = q - t[i_t-1]
        t_r = inf
        if i_t < A:
            t_r = t[i_t] - q
        # 同じ方向に行く場合
        sltl = max([s_l, t_l])
        srtr = max([s_r, t_r])

        # 違う方向に行く場合
        sltr = min([s_l, t_r]) * 2 + max([s_l, t_r])
        srtl = min([s_r, t_l]) * 2 + max([s_r, t_l])

        min_d = min([sltl, srtr, sltr, srtl])

        print(min_d)
        
    return


# Generated by 1.1.4 https://github.com/kyuridenamida/atcoder-tools  (tips: You use the default template now. You can remove this line by using your custom template)
def main():
    def iterate_tokens():
        for line in sys.stdin:
            for word in line.split():
                yield word
    tokens = iterate_tokens()
    A = int(next(tokens))  # type: int
    B = int(next(tokens))  # type: int
    Q = int(next(tokens))  # type: int
    s = [ int(next(tokens)) for _ in range(A) ]  # type: "List[int]"
    t = [ int(next(tokens)) for _ in range(B) ]  # type: "List[int]"
    x = [ int(next(tokens)) for _ in range(Q) ]  # type: "List[int]"
    solve(A, B, Q, s, t, x)

if __name__ == '__main__':
    main()


Fixed submission:
#!/usr/bin/env python3
import sys
import bisect

inf = float('inf')

def solve(A: int, B: int, Q: int, s: "List[int]", t: "List[int]", x: "List[int]"):
    for q in x:
        i_s = bisect.bisect(s, q)
        i_t = bisect.bisect(t, q)

        s_l = q - s[i_s-1] if i_s > 0 else inf
        s_r = s[i_s] - q if i_s < A else inf
        t_l = q - t[i_t-1] if i_t > 0 else inf
        t_r = t[i_t] - q if i_t < B else inf

        # 同じ方向に行く場合
        sltl = max([s_l, t_l])
        srtr = max([s_r, t_r])

        # 違う方向に行く場合
        sltr = min([s_l, t_r]) + sum([s_l, t_r])
        srtl = min([s_r, t_l]) + sum([s_r, t_l])

        min_d = min([sltl, srtr, sltr, srtl])

        print(min_d)
        
    return


# Generated by 1.1.4 https://github.com/kyuridenamida/atcoder-tools  (tips: You use the default template now. You can remove this line by using your custom template)
def main():
    def iterate_tokens():
        for line in sys.stdin:
            for word in line.split():
                yield word
    tokens = iterate_tokens()
    A = int(next(tokens))  # type: int
    B = int(next(tokens))  # type: int
    Q = int(next(tokens))  # type: int
    s = [ int(next(tokens)) for _ in range(A) ]  # type: "List[int]"
    t = [ int(next(tokens)) for _ in range(B) ]  # type: "List[int]"
    x = [ int(next(tokens)) for _ in range(Q) ]  # type: "List[int]"
    solve(A, B, Q, s, t, x)

if __name__ == '__main__':
    main()