Dolout Program In Python

 LH  = int(input().strip())

UH  = int(input().strip())

LW  = int(input().strip())

UW  = int(input().strip())

dct = {}

max_len = 0

count = 0

def f(x,y):

  global count, max_len

  count += 1

  if x<y:

    x, y = y,x

  if x==0 or y==0:

    return 0

  if x==y:

    return 1

  else:

    if (x,y) not in dct:

      dct[(x,y)] = 1+f(x-y,y)

      if len(dct)>max_len: max_len = len(dct)

      if ((x-y,y) in dct): del dct[(x-y,y)]

    return dct[(x,y)]

res = 0

for i in range(LH,UH+1):

  for j in range(LW,UW+1):

    res += f(i,j)

print(res)