A compiler friendly calculator

gencalc.py

print("""
main = do
    print "Welcome to my addition calculator :)"
    a <- getLine
    b <- getLine
    print $ add (read a) (read b)
""")

for i in range(1000):
    for j in range(1000):
        print(f'add {i} {j} = "{i} + {j}"')