Valid Input Examples:

EPSG:3857(X, Y): 5714927.050508631, 4259384.060127694

EPSG:4326(lng, lat): 51.338063171, 35.699738067

EPSG:4326(lat, lng — Google Maps): 35.699738067, 51.338063171

Integers and decimals are both accepted, separated by a comma or a space. With Auto Detect, values within ±180 / ±90 are treated as EPSG:4326 in lng, lat order — pick the lat, lng option for coordinates copied from Google Maps.