#include <stdio.h>

void main()
{
    char c;
    int i;  
    long x;
    float f;
    double d;

    printf("char variable c = %c\n",c);
    printf("int variable i = %i\n",i);
    printf("long variable x = %l\n",x);
    printf("float variable f = %f\n",f);
    printf("double variable d = %f\n",d);
}