How to attach a callback function to the arduino input pin

I have 9 led bulbs and 2 pushbutton(not gui button) 9 leds set to 2-10 pins as output. 2 pushbtn set to 12 and 13 as input.

when:

press 1st pushbtn ----> 1st led turn on.

press 2nd pushbtn ----> 2nd led blink forever.

again press 1st pushbtn ----> 3rd led trun on.

again press 2nd pushbtn ----> 4th led blink forever.

again press 1st pushbtn ----> 5th led trun on.

likewise finally 5 leds turn on and 4 leds blink.

This is the task i want to do with matlab using arduino uno. (can't use mega board) I hope this can be done by callback function. but i dont know how to do it.