#include<iostream>
#include<math.h>
#include<string>
using namespace std;
int GetSize(int Nr);
int GetNrByPlace(int Nr,int Loc);
int main(){
int n=0,Suma=0,Val=0;
cin>>n;
while(n!=0){
cin>>Val;
Suma+=GetNrByPlace(Val,getSize(Val));
n--;
}
cout<<Suma;
system("pause");
return 0;
}
int GetSize(int Nr){
int Size=0;
while(Nr!=0){
Size++; Nr/=10;
}
return Size;
}
int GetNrByPlace(int Nr,int Loc){
int Count=0;
while(Nr!=0){
Count++;
if(Count==Loc) {
return Nr%10;
continue;
}
Nr/=10;
}
}
