Buggy python submission (verdict: Runtime Error):
import sys
def Is(): return [int(x) for x in sys.stdin.readline().split()]
def I(): return int(sys.stdin.readline())

H,W,D = Is()
d = dict()
for i in range(H):
    s = Is()
    for j,e in enumerate(s):
        d[e] = (i,j)
Q = I()

m = [[0]*H*W for i in range(H*W)] 
def calc(l,r):
    if m[l][r] != 0:
        return m[l][r]
    else:
        maho = 0
        for k in range(l,r,D):
            maho += abs(d[k+D][0] - d[k][0]) + abs(d[k+D][1] - d[k][1])
        m[l][r] = maho
        return maho
    
for q in range(Q):
    l,r = Is()
    maho = calc(l,r)
    print(maho)


Fixed submission:
import sys,collections;sys.setrecursionlimit(10**7)
def Is(): return [int(x) for x in sys.stdin.readline().split()]
def Ss(): return sys.stdin.readline().split()
def I(): return int(sys.stdin.readline())
def S(): return input()

n = I()
print(n//3)

Buggy python submission (verdict: Runtime Error):
import sys
def Is(): return [int(x) for x in sys.stdin.readline().split()]
def I(): return int(sys.stdin.readline())

H,W,D = Is()
d = dict()
for i in range(H):
    s = Is()
    for j,e in enumerate(s):
        d[e] = (i,j)
Q = I()
for q in range(Q):
    l,r = Is()
    maho = 0
    for k in range(l,r,D):
        maho += abs(d[k+D][0] - d[k][0]) + abs(d[k+D][1] - d[k][1])
    print(maho)


Fixed submission:
import sys,collections;sys.setrecursionlimit(10**7)
def Is(): return [int(x) for x in sys.stdin.readline().split()]
def Ss(): return sys.stdin.readline().split()
def I(): return int(sys.stdin.readline())
def S(): return input()

n = I()
print(n//3)

Buggy python submission (verdict: Runtime Error):
import sys
def Is(): return [int(x) for x in sys.stdin.readline().split()]
def I(): return int(sys.stdin.readline())

H,W,D = Is()
d = dict()
for i in range(H):
    s = Is()
    for j,e in enumerate(s):
        d[e] = (i,j)
Q = I()
for q in range(Q):
    l,r = Is()
    maho = 0
    for k in range(l,r,D):
        maho += abs(d[k+D][0] - d[k][0]) + abs(d[k+D][1] - d[k][1])
    print(maho)


Fixed submission:
import sys,collections;sys.setrecursionlimit(10**7)
def Is(): return [int(x) for x in sys.stdin.readline().split()]
def Ss(): return sys.stdin.readline().split()
def I(): return int(sys.stdin.readline())
def S(): return input()

n = I()
print(n//3)

Buggy python submission (verdict: Runtime Error):
import sys,collections;sys.setrecursionlimit(10**7)
def Is(): return [int(x) for x in sys.stdin.readline().split()]
def Ss(): return sys.stdin.readline().split()
def I(): return int(sys.stdin.readline())
def S(): return input()

H,W,D = Is()
d = dict()
for i in range(H):
    s = Is()
    for j,e in enumerate(s):
        d[e] = (i,j)
Q = I()
for q in range(Q):
    l,r = Is()
    maho = 0
    for k in range(l,r,D):
        maho += abs(d[k+D][0] - d[k][0]) + abs(d[k+D][1] - d[k][1])
    print(maho)

Fixed submission:
import sys,collections;sys.setrecursionlimit(10**7)
def Is(): return [int(x) for x in sys.stdin.readline().split()]
def Ss(): return sys.stdin.readline().split()
def I(): return int(sys.stdin.readline())
def S(): return input()

n = I()
print(n//3)

Buggy python submission (verdict: Runtime Error):
import sys,collections;sys.setrecursionlimit(10**7)
import itertools
def Is(): return [int(x) for x in sys.stdin.readline().split()]
def Ss(): return sys.stdin.readline().split()
def I(): return int(sys.stdin.readline())
def S(): return input()

H,W,D = Is()
d = dict()
for i in range(H):
    s = Is()
    for j,e in enumerate(s):
        d[e] = (i,j)
Q = I()
for q in range(Q):
    l,r = Is()
    maho = 0
    for k in range(l,r,D):
        maho += abs(d[k+D][0] - d[k][0]) + abs(d[k+D][1] - d[k][1])
    print(maho)

Fixed submission:
import sys,collections;sys.setrecursionlimit(10**7)
def Is(): return [int(x) for x in sys.stdin.readline().split()]
def Ss(): return sys.stdin.readline().split()
def I(): return int(sys.stdin.readline())
def S(): return input()

n = I()
print(n//3)