Buggy python submission (verdict: Time Limit Exceeded):
import numpy as np

H, W, D = map(int, input().split())
pos = [None]*(H*W)

for i in range(H):
    row = list(map(int, input().split()))
    for j in range(W):
        pos[row[j]-1] = (i, j)

costs = [0]*(H*W)
for i in range(1, D+1):
    current = i + D
    while current <= H*W:
        costs[current - 1] = costs[current - 1 - D] + np.absolute(pos[current - 1][0] - pos[current - 1 - D][0]) + np.absolute(pos[current - 1][1] - pos[current - 1 - D][1])
        current += D

Q = int(input())
for _ in range(Q):
    L, R = map(int, input().split())
    MP = costs[R-1] - costs[L-1]
    print(MP)

Fixed submission:
H, W, D = map(int, input().split())
pos = [None]*(H*W)

for i in range(H):
    row = list(map(int, input().split()))
    for j in range(W):
        pos[row[j]-1] = (i, j)

costs = [0]*(H*W)
for i in range(1, D+1):
    current = i + D
    while current <= H*W:
        costs[current - 1] = costs[current - 1 - D] + abs(pos[current - 1][0] - pos[current - 1 - D][0]) + abs(pos[current - 1][1] - pos[current - 1 - D][1])
        current += D

Q = int(input())
for _ in range(Q):
    L, R = map(int, input().split())
    MP = costs[R-1] - costs[L-1]
    print(MP)

Buggy python submission (verdict: Time Limit Exceeded):
import numpy as np

H, W, D = map(int, input().split())
pos = [None]*(H*W)

for i in range(H):
    row = list(map(int, input().split()))
    for j in range(W):
        pos[row[j]-1] = (i, j)

Q = int(input())
for _ in range(Q):
    L, R = map(int, input().split())
    if L == R:
        print(0)
    else:
        to_be_checked = [i for i in range(L, R+1, D)]
        moves = len(to_be_checked)
        pos_list = [pos[i-1] for i in to_be_checked]

        MP = sum([np.absolute(pos_list[i][0] - pos_list[i+1][0]) for i in range(moves-1)]) + sum([np.absolute(pos_list[i][1] - pos_list[i+1][1]) for i in range(moves-1)])

        print(MP)

Fixed submission:
H, W, D = map(int, input().split())
pos = [None]*(H*W)

for i in range(H):
    row = list(map(int, input().split()))
    for j in range(W):
        pos[row[j]-1] = (i, j)

costs = [0]*(H*W)
for i in range(1, D+1):
    current = i + D
    while current <= H*W:
        costs[current - 1] = costs[current - 1 - D] + abs(pos[current - 1][0] - pos[current - 1 - D][0]) + abs(pos[current - 1][1] - pos[current - 1 - D][1])
        current += D

Q = int(input())
for _ in range(Q):
    L, R = map(int, input().split())
    MP = costs[R-1] - costs[L-1]
    print(MP)

Buggy python submission (verdict: Runtime Error):
import numpy as np

H, W, D = map(int, input().split())
pos = [None]*(H*W)

for i in range(H):
    row = list(map(int, input().split()))
    for j in row:
        pos[row[j]] = (i, j)

Q = int(input())
for _ in range(Q):
    L, R = map(int, input().split())
    if L == R:
        print(0)
    else:
        to_be_checked = [i for i in range(L, R+1, D)]
        moves = len(to_be_checked)
        pos_list = [tpl for tpl in to_be_checked]

        MP = sum([np.absolute(pos_list[i][0] - pos_list[i+1][0]) for i in range(moves-1)]) + sum([np.absolute(pos_list[i][1] - pos_list[i+1][1]) for i in range(moves-1)])

        print(MP)

Fixed submission:
H, W, D = map(int, input().split())
pos = [None]*(H*W)

for i in range(H):
    row = list(map(int, input().split()))
    for j in range(W):
        pos[row[j]-1] = (i, j)

costs = [0]*(H*W)
for i in range(1, D+1):
    current = i + D
    while current <= H*W:
        costs[current - 1] = costs[current - 1 - D] + abs(pos[current - 1][0] - pos[current - 1 - D][0]) + abs(pos[current - 1][1] - pos[current - 1 - D][1])
        current += D

Q = int(input())
for _ in range(Q):
    L, R = map(int, input().split())
    MP = costs[R-1] - costs[L-1]
    print(MP)

Buggy python submission (verdict: Time Limit Exceeded):
import numpy as np

H, W, D = map(int, input().split())
A = []

for _ in range(H):
    A.append(list(map(int, input().split())))

A = np.array(A)
    
Q = int(input())

for _ in range(Q):
    L, R = map(int, input().split())
    
    to_be_checked = [i for i in range(L, R+1, D)]
    
    if L == R:
        print(0)
    else:
        mask = np.in1d(A, to_be_checked).reshape(A.shape[0], A.shape[1])
        idx_x, idx_y = np.where(mask == True)
        order = np.argsort(A[idx_x, idx_y])
        idx_x = idx_x[order]
        idx_y = idx_y[order]

        MP = sum([np.absolute(idx_x[i] - idx_x[i+1]) for i in range(len(idx_x)-1)]) + sum([np.absolute(idx_y[i] - idx_y[i+1]) for i in range(len(idx_y)-1)])

        print(MP)

Fixed submission:
H, W, D = map(int, input().split())
pos = [None]*(H*W)

for i in range(H):
    row = list(map(int, input().split()))
    for j in range(W):
        pos[row[j]-1] = (i, j)

costs = [0]*(H*W)
for i in range(1, D+1):
    current = i + D
    while current <= H*W:
        costs[current - 1] = costs[current - 1 - D] + abs(pos[current - 1][0] - pos[current - 1 - D][0]) + abs(pos[current - 1][1] - pos[current - 1 - D][1])
        current += D

Q = int(input())
for _ in range(Q):
    L, R = map(int, input().split())
    MP = costs[R-1] - costs[L-1]
    print(MP)

Buggy python submission (verdict: Time Limit Exceeded):
import numpy as np

H, W, D = map(int, input().split())
A = []

for _ in range(H):
    A.append(list(map(int, input().split())))

A = np.array(A)
    
Q = int(input())

for _ in range(Q):
    L, R = map(int, input().split())
    MP = 0
    x = np.where(A == L)[0][0]
    y = np.where(A == L)[1][0]
    
    while L != R:
        L += D
        next_x = np.where(A == L)[0][0]
        next_y = np.where(A == L)[1][0]
        MP += np.absolute(next_x - x) + np.absolute(next_y - y)
        x = next_x
        y = next_y
    
    print(MP)

Fixed submission:
H, W, D = map(int, input().split())
pos = [None]*(H*W)

for i in range(H):
    row = list(map(int, input().split()))
    for j in range(W):
        pos[row[j]-1] = (i, j)

costs = [0]*(H*W)
for i in range(1, D+1):
    current = i + D
    while current <= H*W:
        costs[current - 1] = costs[current - 1 - D] + abs(pos[current - 1][0] - pos[current - 1 - D][0]) + abs(pos[current - 1][1] - pos[current - 1 - D][1])
        current += D

Q = int(input())
for _ in range(Q):
    L, R = map(int, input().split())
    MP = costs[R-1] - costs[L-1]
    print(MP)