Buggy python submission (verdict: Time Limit Exceeded):
L,R = map(int,input().split())
array = []
array2 = []
for i in range(L,R+1):
    if i%2019 not in array2:
        array2.append(i%2019)
for i in range(len(array2)):
    for j in range(len(array2)):
        if i < j:
            array.append((array2[i]*array2[j])%2019)
print(min(array))

Fixed submission:
L,R = map(int,input().split())
array = []
array2 = []
if R+1 - L <= 2019:
    for i in range(L,R+1):
        if i%2019 not in array2:
            array2.append(i%2019)

    for i in range(len(array2)):
        for j in range(len(array2)):
            if i < j:
                array.append((array2[i]*array2[j])%2019)
    print(min(array))
else:
    for i in range(1,2020):
        if i%2019 not in array2:
            array2.append(i%2019)

    for i in range(len(array2)):
        for j in range(len(array2)):
            if i < j:
                array.append((array2[i]*array2[j])%2019)
    print(min(array))

Buggy python submission (verdict: Time Limit Exceeded):
L,R = map(int,input().split())
array = []
array2 = []
for i in range(L,R+1):
    array2.append(i%2019)
array2 = list(set(array2))
for i in range(len(array2)):
    for j in range(len(array2)):
        if i < j:
            m = (array2[i]%2019)*(array2[j]%2019)
            array.append(m%2019)
print(min(array))

Fixed submission:
L,R = map(int,input().split())
array = []
array2 = []
if R+1 - L <= 2019:
    for i in range(L,R+1):
        if i%2019 not in array2:
            array2.append(i%2019)

    for i in range(len(array2)):
        for j in range(len(array2)):
            if i < j:
                array.append((array2[i]*array2[j])%2019)
    print(min(array))
else:
    for i in range(1,2020):
        if i%2019 not in array2:
            array2.append(i%2019)

    for i in range(len(array2)):
        for j in range(len(array2)):
            if i < j:
                array.append((array2[i]*array2[j])%2019)
    print(min(array))

Buggy python submission (verdict: Time Limit Exceeded):
L,R = map(int,input().split())
array = []
array2 = []
for i in range(L,R+1):
    array2.append(i%2019)
array2 = list(set(array2))
for i in range(len(array2)):
    for j in range(len(array2)):
        if i < j:
            m = (array2[i]%2019)*(array2[j]%2019)
            array.append(m%2019)
print(min(array))

Fixed submission:
L,R = map(int,input().split())
array = []
array2 = []
if R+1 - L <= 2019:
    for i in range(L,R+1):
        if i%2019 not in array2:
            array2.append(i%2019)

    for i in range(len(array2)):
        for j in range(len(array2)):
            if i < j:
                array.append((array2[i]*array2[j])%2019)
    print(min(array))
else:
    for i in range(1,2020):
        if i%2019 not in array2:
            array2.append(i%2019)

    for i in range(len(array2)):
        for j in range(len(array2)):
            if i < j:
                array.append((array2[i]*array2[j])%2019)
    print(min(array))

Buggy python submission (verdict: Time Limit Exceeded):
L,R = map(int,input().split())
array = []
for i in range(L,R+1):
    for j in range(L,R+1):
        if i < j:
            m = (i%2019)*(j%2019)
            array.append(m%2019)
print(min(array))

Fixed submission:
L,R = map(int,input().split())
array = []
array2 = []
if R+1 - L <= 2019:
    for i in range(L,R+1):
        if i%2019 not in array2:
            array2.append(i%2019)

    for i in range(len(array2)):
        for j in range(len(array2)):
            if i < j:
                array.append((array2[i]*array2[j])%2019)
    print(min(array))
else:
    for i in range(1,2020):
        if i%2019 not in array2:
            array2.append(i%2019)

    for i in range(len(array2)):
        for j in range(len(array2)):
            if i < j:
                array.append((array2[i]*array2[j])%2019)
    print(min(array))