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

lenD = 0
D = []

it = L
while(it<=R):
    D.append(it%2019)
    lenD += 1
    if lenD>=2019*2:break
    it += 1

ans = 2019
for i in range(lenD):
    for j in range(i+1,lenD):
        a = (D[i]*D[j]) % 2019
        if ans > a:
            ans = a
            
print(ans)

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

ans = 2019
it = L
while(it<=min(R,it+2019)):
    jt = it+1
    while(jt<=min(R,jt+2019)):
        a = (it*jt)%2019
        if a < ans:
            ans = a
            if ans==0:break
        jt += 1
    if ans==0:break
    it += 1
            
print(ans)

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

D = []

it = L
while(it<=R):
    D.append(it%2019)
    if len(D)>=2019*2:break
    it += 1

ans = 2019
for i in range(len(D)):
    for j in range(i+1,len(D)):
        a = (D[i]*D[j]) % 2019
        if ans > a:
            ans = a
            
print(ans)

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

ans = 2019
it = L
while(it<=min(R,it+2019)):
    jt = it+1
    while(jt<=min(R,jt+2019)):
        a = (it*jt)%2019
        if a < ans:
            ans = a
            if ans==0:break
        jt += 1
    if ans==0:break
    it += 1
            
print(ans)

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

D = []

it = L
while(it<=R):
    D.append(it%2019)
    if len(D)>=2019*2:break
    it += 1

ans = 2019
for i in range(len(D)):
    for j in range(i+1,len(D)):
        a = (D[i]*D[j]) % 2019
        if ans > a:
            ans = a
            
print(ans)

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

ans = 2019
it = L
while(it<=min(R,it+2019)):
    jt = it+1
    while(jt<=min(R,jt+2019)):
        a = (it*jt)%2019
        if a < ans:
            ans = a
            if ans==0:break
        jt += 1
    if ans==0:break
    it += 1
            
print(ans)

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

D = []

for i in range(L,R+1):
    D.append(i%2019)
    if len(D)>=4038:
        break

ans = 2019
for i in range(len(D)):
    for j in range(i+1,len(D)):
        a = (D[i]*D[j]) % 2019
        if ans > a:
            ans = a
            if ans==0:break
            
print(ans)

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

ans = 2019
it = L
while(it<=min(R,it+2019)):
    jt = it+1
    while(jt<=min(R,jt+2019)):
        a = (it*jt)%2019
        if a < ans:
            ans = a
            if ans==0:break
        jt += 1
    if ans==0:break
    it += 1
            
print(ans)

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

D = []

for i in range(L,R+1):
    D.append(i%2019)
    if len(D)>=4038:
        break

ans = 2019
for i in range(len(D)):
    for j in range(i+1,len(D)):
        a = (D[i]*D[j]) % 2019
        if ans > a:
            ans = a
            
print(ans)

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

ans = 2019
it = L
while(it<=min(R,it+2019)):
    jt = it+1
    while(jt<=min(R,jt+2019)):
        a = (it*jt)%2019
        if a < ans:
            ans = a
            if ans==0:break
        jt += 1
    if ans==0:break
    it += 1
            
print(ans)