#include <iostream>
using namespace std;
int main() {
// your code goes here
int ia[]={0,1,2,3,4,5,6,7,8,9};
int *beg=begin(ia);
int *last=end(ia);
std::cout<<(*last)<<std::endl;
std::cout<<(*beg)<<std::endl;
std::cout<<(*last-*beg)<<std::endl;
return 0;
}
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