#include<stdio.h>

main()
{
  char i='a';
  int a=5;
  printf("i is %d \n",i);
  printf("a is %f \n",a);
  printf("a is %f \n",(float)a);  
return 0;
}

i is 97 
a is 2.168831 
a is 5.000000