#include<stdio.h>
#include<math.h>

int main()
{
    int z;
    double s;
    scanf("%d",&z);
    while(z--){
        int x,k,c;
        scanf("%d%d",&x,&k);
        double lx,px,cs,fs;
        lx=0;
        px=x/2;



        while(px-lx>pow(0.1,k)){
        s=(lx+px)/2;
        if(s*s<x){
            lx=s;
        }else{
            px=s;}

}
cs = (int) ceil(s);         fs = (int) floor(s);
if (cs*cs > x)  printf("%d ", fs);
else printf("%d ", cs);

        printf("%.15LF ", s);

        if (fs*fs < x) printf("%d\n", cs);

        else printf("%d\n", fs);
}
return 0;
}