Buggy python submission (verdict: Runtime Error):
# D
x, y, z, k = map(int, input().split())
a = list(map(int, input().split()))
b = list(map(int, input().split()))
c = list(map(int, input().split()))
a.sort(reverse=True)
b.sort(reverse=True)
c.sort(reverse=True)
a_l = []
a_max = a[0]
for i in range(len(a)):
    a_l.append(a[i] - a_max)
b_l = []
b_max = b[0]
for i in range(len(b)):
    b_l.append(b[i] - b_max)
c_l = []
c_max = c[0]
for i in range(len(c)):
    c_l.append(c[i] - c_max)
a_count = 0
b_count = 0
c_count = 0
while a_count * b_count * c_count < k:
    l = [a_l[a_count], b_l[b_count], c_l[c_count]]
    l.sort(reverse=True)
    for m in l:
        if a_count < len(a) and m == a_l[a_count]:
            a_count += 1
        elif b_count < len(b) and m == b_l[b_count]:
            b_count += 1
        elif c_count < len(c) and m == c_l[c_count]:
            c_count += 1
a = a[:a_count+1]
b = b[:b_count+1]
c = c[:c_count+1]

ans = []
for i in a:
    for j in b:
        for l in c:
            ans.append(i+j+l)
ans.sort(reverse=True)
for i in range(k):
    print(ans[i])

Fixed submission:
# D
x, y, z, k = map(int, input().split())
a = list(map(int, input().split()))
b = list(map(int, input().split()))
c = list(map(int, input().split()))
a.sort(reverse=True)
b.sort(reverse=True)
c.sort(reverse=True)

ans = []
for index_i, i in enumerate(a):
    for index_j, j in enumerate(b):
        for index_l, l in enumerate(c):
            if ((index_i+1)*(index_j+1)*(index_l+1) <= k):
                ans.append(i+j+l)
            else:
                break
ans.sort(reverse=True)
for i in range(k):
    print(ans[i])

Buggy python submission (verdict: Runtime Error):
# D
x, y, z, k = map(int, input().split())
a = list(map(int, input().split()))
b = list(map(int, input().split()))
c = list(map(int, input().split()))
a.sort(reverse=True)
b.sort(reverse=True)
c.sort(reverse=True)
a_l = []
a_max = a[0]
for i in range(len(a)):
    a_l.append(a[i] - a_max)
b_l = []
b_max = b[0]
for i in range(len(b)):
    b_l.append(b[i] - b_max)
c_l = []
c_max = c[0]
for i in range(len(c)):
    c_l.append(c[i] - c_max)
a_count = 0
b_count = 0
c_count = 0
while a_count * b_count * c_count < k:
    l = [a_l[a_count], b_l[b_count], c_l[c_count]]
    l.sort(reverse=True)
    for m in l:
        if m == a_l[a_count] and a_count < len(a):
            a_count += 1
        elif m == b_l[b_count] and b_count < len(b):
            b_count += 1
        elif m == b_l[b_count] and b_count < len(b):
            c_count += 1
    print(a_count, b_count, c_count)
a = a[:a_count+1]
b = b[:b_count+1]
c = c[:c_count+1]
print(a, b, c)
ans = []
for i in a:
    for j in b:
        for l in c:
            ans.append(i+j+l)
ans.sort(reverse=True)
for i in range(k):
    print(ans[i])

Fixed submission:
# D
x, y, z, k = map(int, input().split())
a = list(map(int, input().split()))
b = list(map(int, input().split()))
c = list(map(int, input().split()))
a.sort(reverse=True)
b.sort(reverse=True)
c.sort(reverse=True)

ans = []
for index_i, i in enumerate(a):
    for index_j, j in enumerate(b):
        for index_l, l in enumerate(c):
            if ((index_i+1)*(index_j+1)*(index_l+1) <= k):
                ans.append(i+j+l)
            else:
                break
ans.sort(reverse=True)
for i in range(k):
    print(ans[i])