课本代码~~~

#include<iostream>
#include<cstdio>
#include<string>
#include<algorithm>
using namespace std;
int n,t,k,j;
string a[8005],s;
int main()
{
	freopen("word.in","r",stdin);
	freopen("word.out","w",stdout);
	while(cin>>a[++n]);
	n--;
	sort(a+1,a+n+1);
	t=a[1].length();
	for(int i=2;i<=n;i++){
		j=0;
		while(a[i][j]==a[i-1][j]&&j<a[i-1].length()) j++;
		t+=a[i].length()-j;
	}
	cout<<t+1; 
	return 0; 
}