#include<bits/stdc++.h>
using namespace std;
double res;
void dfs(int x,int sum,double ans){
    if(x==5){
        res=max(res,ans);
        return ;
    }
    if(sum>=95)dfs(x+1,sum-95,ans+4.3);
    if(sum>=90)dfs(x+1,sum-90,ans+4.0);
    if(sum>=85)dfs(x+1,sum-85,ans+3.7);
    if(sum>=80)dfs(x+1,sum-80,ans+3.3);
    if(sum>=75)dfs(x+1,sum-75,ans+3.0);
    if(sum>=70)dfs(x+1,sum-70,ans+2.7);
    if(sum>=67)dfs(x+1,sum-67,ans+2.3);
    if(sum>=65)dfs(x+1,sum-65,ans+2.0);
    if(sum>=62)dfs(x+1,sum-62,ans+1.7);
    if(sum>=60)dfs(x+1,sum-60,ans+1.0);
    if(sum>=0)dfs(x+1,sum,ans);
}
int main(){
    int T;
    cin>>T;
    int n;
    while(T--){
        cin>>n;
        res=0;
        dfs(1,n,0);
        printf("%.1f\n",res);
    }
    return 0;
}