Task

Express a number in decimal as a fixed-length string with leading zeros.



For example, the number   7.125   could be expressed as   00007.125.




constant r = 7.125
printf(1,"%9.3f\n",-r)
printf(1,"%9.3f\n",r)
printf(1,"%-9.3f\n",r)
printf(1,"%09.3f\n",-r)
printf(1,"%09.3f\n",r)
printf(1,"%-09.3f\n",r)