Beginner C - prints custom float inputs in reverse order

I am writing a program that uses 1 instruction to read 6 floats from the user. Then print 6 numbers on 3 lines with all of the following requirements:

(1) the numbers are printed in reverse order to be read in

(2) they are on 3 lines: 1 number on the first line, 2 numbers on the next line, 3 numbers on the last line

(3) align the numbers so that they are in column format, on the right side, with 1 digit after the decimal point

Here's my attempt for the first 2 requirements

#include <stdio.h>

int main(void)

{
    //variable definitions
    float f1,f2,f3,f4,f5,f6;

    printf ("Enter 6 float numbers, separated by commas: ");

    scanf ("%f1,%f2,%f3,%f4,%f5,%f6",&f1,&f2,&f3,&f4,&f5,&f6);

    printf ("%f6\n",f6);
    printf ("%f5,%f4\n",f5,f4);
    printf ("%f3,%f2,%f1\n",f3,f2,f1);

    return 0;

}

      

        
        
        
      

    

For my novice mind, this makes sense.

Here is the output when I run it

Enter 6 floating point numbers separated by comma: 0,2,3,2,0,1,0,5,0,6,0,7

numbers:

-107374176.0000006

-107374176.0000005, -107374176.0000004

-107374176.0000003, -107374176.0000002,0.2000001

Press any key to continue.,.

These are all trash exits, except for the last one. Appreciate all the helpful advice!