# Poj Solution 2121

```http://poj.org/problem?id=2121

//* @author: 82638882@163.com
import java.io.*;
import java.util.*;
public class Main
{
static String[] Num=new String[]{
"zero","one","two","three","four","five","six","seven","eight","nine","ten",
"eleven","twelve","thirteen","fourteen","fifteen","sixteen","seventeen","eighteen",
"nineteen","twenty","thirty","forty","fifty","sixty","seventy","eighty","ninety",
"hundred","thousand","million"
};

public static void main(String[] args) throws IOException
{
String s;
while(true)
{
if(s.equals("")) break;
boolean bb=true;
String[] ss=s.split(" ");
int len=ss.length;
long sum=0;
long temp=0;
int tag=0;
if(ss[0].equals("negative")){
bb=false;
tag=1;
}
for(int i=tag;i< len;i++)
{
for(int j=0;j< 31;j++)
{
if(ss[i].equals(Num[j]))
{
if(j<=20) temp+=j;
else if(j< 28) temp+=(j-18)*10;
else if(j==28) temp*=100;
else if(j==29)
{
temp*=1000;sum+=temp;temp=0;
}
else if(j==30)
{
sum+=temp;sum*=1000000;temp=0;
}
break;
}
}
}
sum+=temp;
if(!bb) sum=-sum;
System.out.println(sum);
}
}
}
```
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