1 #include<iostream> 2 #include<fstream> 3 #include<cstdio> 4 #include<string.h> 5 #include<cstdlib> 6 using namespace std; 7 int main() 8 { 9 freopen("weblink_new.txt","r",stdin); 10 freopen("new.txt","w",stdout); 11 12 int i,j,k; 13 char str[2000]; 14 while(gets(str)) 15 { 16 int len = strlen(str); 17 if(len == 0) 18 strcpy(str,"NA"); 19 cout<<str<<endl; 20 } 21 22 fclose(stdin); 23 fclose(stdout); 24 25 return 0; 26 }