Given three numbers, start, stop and step $($start $$ stop, step $$ stop$),$ write a Python function named, print$\_$series to print the sequence of numbers from start to stop both inclusive in steps as a comma separated series of numbers. Make the default step value to $1.$ For example for the start $=3,$ stop $=26$ and step $=2,$ your call, print$\_$series$(3,26,2)$ must print $3,5,7,9,11,13,15,17,19,21,23,25,$ whereas your call print$\_$series$(3,26)$ must print $3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,.$

Please note the separation by single commas and a spaces all the way to the end. You must use a looping technique here.

Use test cases provided.