//hihi and is is impulse its starting with one of numbers and raw counting to the other 4 if next impulse.. but raw..

 if (selector==8){selector=9;}else{if(selector==9){selector=10;}else if (selector==10){selector=11;}else{selector=8;}}

//better use one more key.. caused  with 3 logig works..

 if (selector==9){selector=10;}else{if(selector==10){selector=11;}else{selector=9;}}

//:3