Buggy python submission (verdict: Runtime Error):
L, R = map(int, input().split())

listX = []
sw = 0
i = 1
while i * 2019 > 2000000000:
  i3 = i *2019
  listX.append(i3)
  i += 1

for n in range(len(listX)):
  if L < listX[n] and R > listX[n]:
    sw += 1

if sw > 0:
  print(0)

elif sw == 0:      
  L_1 = L % 2019
  R_1 = R % 2019
  
  idx1 = 0
  listA = []
  for idx1 in range(L_1, R_1):
    for idx2 in range(idx1 + 1, R_1 + 1):
      listA.append(idx1 * idx2)
 
  print(min(listA))

Fixed submission:
L, R = map(int, input().split())

listX = []
for i in range(1, 990590):
  listX.append(i*2019)

sw = 0
for n in range(len(listX)):
  if L < listX[n] and R > listX[n]:
    sw += 1

if sw > 0:
  print(0)

elif sw == 0:
  idx1 = 0
  listA = []
  for idx1 in range(L, R):
    for idx2 in range(idx1 + 1, R + 1):
      listA.append(idx1 * idx2)
 
  idx3 = 0
  listB = []
  for idx3 in range(len(listA)):
    listB.append(listA[idx3] % 2019)
 
  print(min(listB))

Buggy python submission (verdict: Runtime Error):
L, R = map(int, input().split())

listX = []
sw = 0
for i in range(99050):
  listX.append(i*2019)

for n in range(len(listX)):
  if L < listX[n] and R > listX[n]:
    sw += 1

if sw > 0:
  print(0)

else:      
  L_1 = L % 2019
  R_1 = R % 2019
  
  idx1 = 0
  listA = []
  for idx1 in range(L_1, R_1):
    idx2 = idx1 + 1
    for idx2 in range(idx1 + 1, R_1 + 1):
      listA.append(idx1 * idx2)
 
  print(min(listA))

Fixed submission:
L, R = map(int, input().split())

listX = []
for i in range(1, 990590):
  listX.append(i*2019)

sw = 0
for n in range(len(listX)):
  if L < listX[n] and R > listX[n]:
    sw += 1

if sw > 0:
  print(0)

elif sw == 0:
  idx1 = 0
  listA = []
  for idx1 in range(L, R):
    for idx2 in range(idx1 + 1, R + 1):
      listA.append(idx1 * idx2)
 
  idx3 = 0
  listB = []
  for idx3 in range(len(listA)):
    listB.append(listA[idx3] % 2019)
 
  print(min(listB))

Buggy python submission (verdict: Runtime Error):
L, R = map(int, input().split())

if L < 2019 and R > 2019:
  print(0)

else:
  L_1 = L % 2019
  R_1 = R % 2019
  
  idx1 = 0
  listA = []
  for idx1 in range(L_1, R_1):
    idx2 = idx1 + 1
    for idx2 in range(idx1 + 1, R_1 + 1):
      listA.append(idx1 * idx2)
 
  print(min(listA))

Fixed submission:
L, R = map(int, input().split())

listX = []
for i in range(1, 990590):
  listX.append(i*2019)

sw = 0
for n in range(len(listX)):
  if L < listX[n] and R > listX[n]:
    sw += 1

if sw > 0:
  print(0)

elif sw == 0:
  idx1 = 0
  listA = []
  for idx1 in range(L, R):
    for idx2 in range(idx1 + 1, R + 1):
      listA.append(idx1 * idx2)
 
  idx3 = 0
  listB = []
  for idx3 in range(len(listA)):
    listB.append(listA[idx3] % 2019)
 
  print(min(listB))

Buggy python submission (verdict: Time Limit Exceeded):
L, R = map(int, input().split())

idx1 = 0
listA = []
for idx1 in range(L, R):
  for idx2 in range(idx1 + 1, R + 1):
    listA.append(idx1 * idx2)

idx3 = 0
listB = []
for idx3 in range(len(listA)):
  listB.append(listA[idx3] % 2019)

print(min(listB))

Fixed submission:
L, R = map(int, input().split())

listX = []
for i in range(1, 990590):
  listX.append(i*2019)

sw = 0
for n in range(len(listX)):
  if L < listX[n] and R > listX[n]:
    sw += 1

if sw > 0:
  print(0)

elif sw == 0:
  idx1 = 0
  listA = []
  for idx1 in range(L, R):
    for idx2 in range(idx1 + 1, R + 1):
      listA.append(idx1 * idx2)
 
  idx3 = 0
  listB = []
  for idx3 in range(len(listA)):
    listB.append(listA[idx3] % 2019)
 
  print(min(listB))

Buggy python submission (verdict: Runtime Error):
L, R = map(int, input().split())

L_1 = L % 2019
R_1 = R % 2019

idx1 = 0
listA = []
for idx1 in range(L_1, R_1):
  idx2 = idx1 + 1
  for idx2 in range(idx1 + 1, R_1 + 1):
    listA.append(idx1 * idx2)

print(min(listA))

Fixed submission:
L, R = map(int, input().split())

listX = []
for i in range(1, 990590):
  listX.append(i*2019)

sw = 0
for n in range(len(listX)):
  if L < listX[n] and R > listX[n]:
    sw += 1

if sw > 0:
  print(0)

elif sw == 0:
  idx1 = 0
  listA = []
  for idx1 in range(L, R):
    for idx2 in range(idx1 + 1, R + 1):
      listA.append(idx1 * idx2)
 
  idx3 = 0
  listB = []
  for idx3 in range(len(listA)):
    listB.append(listA[idx3] % 2019)
 
  print(min(listB))