B

#include <bits/stdc++.h>

using namespace std;

#define ll     long long
#define _test   int _TEST; cin>>_TEST; while(_TEST--)
#define pb     push_back

int main()
{
    _test
    {
        string s;
        cin>>s;

        s = "0" + s;
        int n = s.size();
        int zeros = n;

        for (int i=n-1; i>=0; i--)
        {
            if (s[i] >= '5')
            {
                s[i] = '0';
                zeros = i;
                int j = i - 1;

                while(s[j] == '9')
                {
                    s[j] = '0';
                    j--;
                }

                s[j]++;
            }
        }

        for(int i=zeros; i<n; i++)
            s[i] = '0';

        if(s.front() == '0')
            s = s.substr(1);

        cout<<s<<'\n';
    }
}