import math
def roundUpToNearest1000(num):
return math.ceil(num / 1000) * 1000
print(roundUpToNearest1000(1438))
print(roundUpToNearest1000(2538))
print(roundUpToNearest1000(2438))
print(roundUpToNearest1000(3499))
print(roundUpToNearest1000(3500))
print(roundUpToNearest1000(3501))
print(roundUpToNearest1000(-3899))
print(roundUpToNearest1000(-3499))
print(roundUpToNearest1000(-3500))
print(roundUpToNearest1000(-3501))
'''
run:
2000
3000
3000
4000
4000
4000
-3000
-3000
-3000
-3000
'''