#include<stdio.h>
#include<math.h>
int main(void)
{
  int   a,i;
  float p[100];

  scanf("%i",&a); 
  //this %i instructs scanf to read an int from keyboard and &a tells keyboard to assign the input value to variable named a

  for(i=0;i<a;i++)
    {
       scanf("%f",&p[i]);
     }
for(i=0;i<a;i++)
    {
       printf("%i\t%f\t%f \n",i,p[i],cosf(p[i]));
     }
  return 0;
}