include<iostream>

include<cmath>

using namespace std; int main() { long long n,a,s,i; cin>>n; for (i=0;i<=10;i++) { n++; if(n%10==0) break;

}
cout<<n;

}

using namespace std; int main() { int n; cin >> n; while (true) {

    if (n % 10 != 0) {
        n = n + 1;
    }
    else if (n % 10 == 0) {

        cout << n;
        break;
    }
}

}