#include<bits/stdc++.h>
using namespace std;
int main()
{
int t, n;
cin>>t;
while(t--)
{
cin>>n;
int y = (int)floor(-n*log10(2));
printf("2^-%d = %.3lfE%d\n", n, pow(10, -n*log10(2)-y), y);
}
return 0;
}
using namespace std;
int main()
{
int t, n;
cin>>t;
while(t--)
{
cin>>n;
int y = (int)floor(-n*log10(2));
printf("2^-%d = %.3lfE%d\n", n, pow(10, -n*log10(2)-y), y);
}
return 0;
}
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