C# RegEx string extraction

Question

I have a string:

\"ImageDimension=655x0;ThumbnailDimension=0x0\".

I have to extract first number (\"655\" string) coming in be

Answer 1

var groups = Regex.Match(input,@"ImageDimension=(\d+)x(\d+);ThumbnailDimension=(\d+)x(\d+)").Groups;
var x1= groups[1].Value;
var y1= groups[2].Value;
var x2= groups[3].Value;
var y2= groups[4].Value;