854B - Maxim Buys an Apartment

B. Maxim Buys an Apartment

time limit per test

1 second

memory limit per test

512 megabytes

input

standard input

output

standard output

Maxim wants to buy an apartment in a new house at Line Avenue of Metropolis. The house has n apartments that are numbered from 1to n and are arranged in a row. Two apartments are adjacent if their indices differ by 1. Some of the apartments can already be inhabited, others are available for sale.

Maxim often visits his neighbors, so apartment is good for him if it is available for sale and there is at least one already inhabited apartment adjacent to it. Maxim knows that there are exactly k already inhabited apartments, but he doesn't know their indices yet.

Find out what could be the minimum possible and the maximum possible number of apartments that are good for Maxim.

Input

The only line of the input contains two integers: n and k (1 ≤ n ≤ 109, 0 ≤ k ≤ n).

Output

Print the minimum possible and the maximum possible number of apartments good for Maxim.

Example

input

Copy

6 3

output

1 3

Note

In the sample test, the number of good apartments could be minimum possible if, for example, apartments with indices 1, 2 and 3 were inhabited. In this case only apartment 4 is good. The maximum possible number could be, for example, if apartments with indices 1, 3 and5 were inhabited. In this case all other apartments: 2, 4 and 6 are good.

题意：

n间一排的房子，其中k个房子有人，问你最少和最多有多少个房子满足你的需求？

水题！注意n==k和k==0的时候

代码：

#include<iostream>
using namespace std;
int main()
{
    long long n,k,m;
    cin>>n>>k;
    if(n<=3*k) m=n-k;
    else m=2*k;
    if(n==k||k==0) cout<<0<<" "<<0<<endl;
    else cout<<1<<" "<<m<<endl;
    return 0;
}