Buggy python submission (verdict: Time Limit Exceeded):
def d_practical_skill_test(H, W, D, A, Q, I):
    import numpy
    a = numpy.array(A)
    tmp = []
    for i in range(D):
        i += 1 + D
        t = [0]
        while i <= H * W:
            j, k = numpy.where(a == i)
            l, m = numpy.where(a == i - D)
            j, k = j[0], k[0]
            l, m = l[0], m[0]
            t.append(t[-1] + abs(j - l) + abs(k - m))
            i += D
        tmp.append(t)
    ans=[]
    for l, r in I:
        l = l - 1
        r = r - 1
        start = l % D
        ans.append(str(tmp[start][r // D] - tmp[start][l // D]))
    return '\n'.join(ans)

H,W,D = [int(i) for i in input().split()]
A = [[int(i) for i in input().split()] for j in range(H)]
Q = int(input())
I = [[int(i) for i in input().split()] for j in range(Q)]
print(d_practical_skill_test(H, W, D, A, Q, I))

Fixed submission:
def d_practical_skill_test(H, W, D, A, Q, I):
    # クエリが1-indexedなため、配列もそれに従う
    px = [0 for _ in range(H * W + 1)]
    py = [0 for _ in range(H * W + 1)]  # (px[i],py[j])にAijの値が入っている
    d = [0 for _ in range(H * W + 1)]
    for i in range(H):
        for j in range(W):
            px[A[i][j]] = i
            py[A[i][j]] = j
    for i in range(D + 1, H * W + 1):
        d[i] = d[i - D] + abs(px[i] - px[i - D]) + abs(py[i] - py[i - D])
    ans = []
    for l, r in I:
        ans.append(str(d[r] - d[l]))
    return '\n'.join(ans)

H,W,D = [int(i) for i in input().split()]
A = [[int(i) for i in input().split()] for j in range(H)]
Q = int(input())
I = [[int(i) for i in input().split()] for j in range(Q)]
print(d_practical_skill_test(H, W, D, A, Q, I))

Buggy python submission (verdict: Time Limit Exceeded):
def d_practical_skill_test(H, W, D, A, Q, I):
    import numpy
    a = numpy.array(A)
    tmp = []
    for i in range(D):
        i += 1 + D
        t = [0]
        while i <= H * W:
            j, k = numpy.where(a == i)
            l, m = numpy.where(a == i - D)
            j, k = j[0], k[0]
            l, m = l[0], m[0]
            t.append(t[-1] + abs(j - l) + abs(k - m))
            i += D
        tmp.append(t)
    ans=''
    for l, r in I:
        l = l - 1
        r = r - 1
        start = l % D
        ans += str(tmp[start][r // D] - tmp[start][l // D]) + '\n'
    return ans[:-1]

H,W,D = [int(i) for i in input().split()]
A = [[int(i) for i in input().split()] for j in range(H)]
Q = int(input())
I = [[int(i) for i in input().split()] for j in range(Q)]
print(d_practical_skill_test(H, W, D, A, Q, I))

Fixed submission:
def d_practical_skill_test(H, W, D, A, Q, I):
    # クエリが1-indexedなため、配列もそれに従う
    px = [0 for _ in range(H * W + 1)]
    py = [0 for _ in range(H * W + 1)]  # (px[i],py[j])にAijの値が入っている
    d = [0 for _ in range(H * W + 1)]
    for i in range(H):
        for j in range(W):
            px[A[i][j]] = i
            py[A[i][j]] = j
    for i in range(D + 1, H * W + 1):
        d[i] = d[i - D] + abs(px[i] - px[i - D]) + abs(py[i] - py[i - D])
    ans = []
    for l, r in I:
        ans.append(str(d[r] - d[l]))
    return '\n'.join(ans)

H,W,D = [int(i) for i in input().split()]
A = [[int(i) for i in input().split()] for j in range(H)]
Q = int(input())
I = [[int(i) for i in input().split()] for j in range(Q)]
print(d_practical_skill_test(H, W, D, A, Q, I))