#include <stdio.h>
 
int main(void)
{
    int j;
    float productf  	 = 1.0f;
    double productd 	 = 1.0;
    long double productl = 1.0l;
 
    for (j = 2; j <= 50; j += 2)
		productf *= j;
	for (j = 2; j <= 50; j += 2)
    	productd *= j;
	for (j = 2; j <= 50; j += 2)
    	productl *= j;
 
    printf("float:       %e\n", productf);
    printf("             %f\n", productf);
 
    printf("double:      %le\n", productd);
    printf("             %lf\n", productd);
 
    printf("long double: %Le\n", productl);
    printf("             %Lf\n", productl);
}
 

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