#include <stdio.h>
#include <stdlib.h>
 
 
int main()
{
    float a = 12.345;
    double b = 12345.1234567;
    long double c = 1234567.1234567;
   
    printf("%f\n%f\n%Lf\n\n", a, b, c);

    printf("%.7f\n%.7Lf\n", b, c);

    return 0;
}

/*
output:

12.345000
12345.123457
1234567.123457

12345.1234567
1234567.1234567

*/