#include <bits/stdc++.h>
using namespace std;
int main() {
int a[10];
int n=sizeof(a)/sizeof(a[0]);
int max=0;
for(int i=0;i<n;i++){
cin>>a[i];
if(a[i]>max) max=a[i];
}
cout<<max;
// your code goes here
return 0;
}
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