Thanks men, but problem is how to get valid integers, not any numbers.
Integers: -9 1 2 3 100 255 etc.
Floats: -10.5 .5 7,17 10.5 etc.
Example from that site detects all numbers or split floats to 2 integers, but shouldn't. Form string "10rats + .36geese = 3.14cows" should get only "10"
