Buggy python submission (verdict: Time Limit Exceeded):
# D
a, b, q = map(int, input().split())
s = [int(input()) for i in range(a)]
t = [int(input()) for i in range(b)]
x = [int(input()) for i in range(q)]

def route(start, mid, end):
    return abs(start-mid) + abs(mid-end)

for i in range(q):
    ans = 10000000000000000000000000
    # jinja
    j_list = [jin-x[i] for jin in s if (jin-x[i])<= 0]
    if len(j_list) != 0:
        j_w = j_list[-1] + x[i]
        t_list = [ter-j_w for ter in t if ter-j_w<=0]
        if len(t_list) != 0:
            t_w = t_list[-1] + j_w
            ans = min(route(x[i], j_w,t_w), ans)
        t_list = [ter-j_w for ter in t if ter-j_w>0]
        if len(t_list) != 0:
            t_e = t_list[0] + j_w
            ans = min(route(x[i], j_w,t_e), ans)
    j_list = [jin-x[i] for jin in s if (jin-x[i]) > 0]
    if len(j_list) != 0:
        j_e = j_list[0] + x[i]
        t_list = [ter-j_e for ter in t if ter-j_e <= 0]
        if len(t_list) != 0:
            t_w = t_list[-1] + j_e
            ans = min(route(x[i], j_e,t_w), ans)
        t_list = [ter-j_e for ter in t if ter-j_e > 0]
        if len(t_list) != 0:
            t_e = t_list[0] + j_e
            ans = min(route(x[i], j_e,t_e), ans)

    t_list = [ter-x[i] for ter in t if ter-x[i]<=0]
    if len(t_list) != 0:
        t_w = t_list[-1] + x[i]
        j_list = [jin-t_w for jin in s if jin-t_w<=0]
        if len(j_list) != 0:
            j_w = j_list[-1] + t_w
            ans = min(route(x[i], t_w,j_w), ans)
        j_list = [jin-t_w for jin in s if jin-t_w>0]
        if len(j_list) != 0:
            j_e = j_list[0] + t_w
            ans = min(route(x[i], t_w,j_e), ans)
    t_list = [ter-x[i] for ter in t if ter-x[i]>0]
    if len(t_list) != 0:
        t_e = t_list[0] + x[i]
        j_list = [jin-t_e for jin in s if jin-t_e<=0]
        if len(j_list) != 0:
            j_w = j_list[-1] + t_e
            ans = min(route(x[i], t_e,j_w), ans)
        j_list = [jin-t_e for jin in s if jin-t_e>0]
        if len(j_list) != 0:
            j_e = j_list[0] + t_e
            ans = min(route(x[i], t_e,j_e), ans)
    print(ans)

Fixed submission:
import bisect
A, B, Q = map(int, input().split())
INF = 10 ** 18
s = [-INF] + [int(input()) for i in range(A)] + [INF]
t = [-INF] + [int(input()) for i in range(B)] + [INF]
for q in range(Q):
    x = int(input())
    b, d = bisect.bisect_right(s, x), bisect.bisect_right(t, x)
    res = INF
    for S in [s[b - 1], s[b]]:
        for T in [t[d - 1], t[d]]:
            d1, d2 = abs(S - x) + abs(T - S), abs(T - x) + abs(S - T)
            res = min(res, d1, d2)
    print(res)

Buggy python submission (verdict: Time Limit Exceeded):
# D
a, b, q = map(int, input().split())
s = [int(input()) for i in range(a)]
t = [int(input()) for i in range(b)]
x = [int(input()) for i in range(q)]

def route(start, mid, end):
    return abs(start-mid) + abs(mid-end)

for i in range(q):
    ans = 10000000000000000000000000
    # jinja
    j_list = [jin-x[i] for jin in s]
    if len([y for y in j_list if y<=0]) != 0:
        j_w = max([y for y in j_list if y<=0]) + x[i]
        t_list = [ter-j_w for ter in t]
        if len([y for y in t_list if y<=0]) != 0:
            t_w = max([y for y in t_list if y<=0]) + j_w
            ans = min(route(x[i], j_w,t_w), ans)
        else:
            t_e = min([y for y in t_list if y>0]) + j_w
            ans = min(route(x[i], j_w,t_e), ans)
    if len([y for y in j_list if y>0]) != 0:
        j_e = min([y for y in j_list if y>0]) + x[i]
        t_list = [ter-j_e for ter in t]
        if len([y for y in t_list if y<=0]) != 0:
            t_w = max([y for y in t_list if y<=0]) + j_e
            ans = min(route(x[i], j_e,t_w), ans)
        else:
            t_e = min([y for y in t_list if y>0]) + j_e
            ans = min(route(x[i], j_e,t_e), ans)
    t_list = [ter-x[i] for ter in t]
    if len([y for y in t_list if y<=0]) != 0:
        t_w = max([y for y in t_list if y<=0]) + x[i]
        j_list = [jin-t_w for jin in s]
        if len([y for y in j_list if y<=0]) != 0:
            j_w = max([y for y in j_list if y<=0]) + t_w
            ans = min(route(x[i], t_w,j_w), ans)
        else:
            j_e = min([y for y in j_list if y>0]) + t_w
            ans = min(route(x[i], t_w,j_e), ans)
    if len([y for y in t_list if y>0]) != 0:
        t_e = min([y for y in t_list if y>0]) + x[i]
        j_list = [jin-t_e for jin in s]
        if len([y for y in j_list if y<=0]) != 0:
            j_w = max([y for y in j_list if y<=0]) + t_e
            ans = min(route(x[i], t_e,j_w), ans)
        else:
            j_e = min([y for y in j_list if y>0]) + t_e
            ans = min(route(x[i], t_e,j_e), ans)
    print(ans)

Fixed submission:
import bisect
A, B, Q = map(int, input().split())
INF = 10 ** 18
s = [-INF] + [int(input()) for i in range(A)] + [INF]
t = [-INF] + [int(input()) for i in range(B)] + [INF]
for q in range(Q):
    x = int(input())
    b, d = bisect.bisect_right(s, x), bisect.bisect_right(t, x)
    res = INF
    for S in [s[b - 1], s[b]]:
        for T in [t[d - 1], t[d]]:
            d1, d2 = abs(S - x) + abs(T - S), abs(T - x) + abs(S - T)
            res = min(res, d1, d2)
    print(res)