题解 | #HJ7 取近似值#

# 方法1
num = float(input())
int_part = int(num)
float_part = num - int_part
if float_part >= 0.5:
    print(int_part + 1)
else:
    print(int_part)

# 方法2
# n = float(input())
# y = lambda x: int(x+0.5)
# print(n)