num = float(input())

num_int = int(num)

num_float = num-num_int

if num_float==0.5:

if num_int%2==0:

print(num_int+1)

else:

print(round(num))

else:

print(round(num))

n = float(input())

y = lambda x : int(x+0.5)

print(y(n))

n = float(input()) print(int(n+0.5))