Use Regular Expression extractor to extract values from url in jmeter

Hi Im trying to extract the first 4 values from a dtnamic url in my jmeter tests

https://odds-stage.sport.com/api/v1/markets?fixtureId=1047571%2C1081782%2C1081783%2C1081784%2C1081785%2C1081786%2C1081787%2C1081788%2C1081789%2C1081973%2C1081974%2C1081975%2C1081976%2C1081978%2C1081979%2C1087557%2C2030874%2C2030967%2C2031744&market=1X2

Im basically trying to extract the first four id's that appear after the url query, (they are marked in bold), i cant seem to find a way to remove %2C from between each ID, Ive used the exteracotr before but only the JSON extractor