import math
print(math.floor(50))
print(math.floor(50.1))
print(math.floor(50.4))
print(math.floor(50.5))
print(math.floor(50.6))
print(math.floor(-10))
print(math.floor(-13.4))
print(math.floor(-13.5))
print(math.floor(-13.6))
print(math.floor(0))
'''
run:
50
50
50
50
50
-10
-14
-14
-14
0
'''