using System;
using System.Text.RegularExpressions;
public class Test
{
public static void Main()
{
string[] data = new[] {
"aaa123", "123aaa", "123", "aaa", "a 1"
};
Regex r = new Regex("[A-Za-z]+[0-9]+");
foreach (string s in data) {
Console.WriteLine("{0} - {1}", s, r.IsMatch(s));
}
}
}
dXNpbmcgU3lzdGVtOwp1c2luZyBTeXN0ZW0uVGV4dC5SZWd1bGFyRXhwcmVzc2lvbnM7CgpwdWJsaWMgY2xhc3MgVGVzdAp7CglwdWJsaWMgc3RhdGljIHZvaWQgTWFpbigpCgl7CgkJc3RyaW5nW10gZGF0YSA9IG5ld1tdIHsKCQkJImFhYTEyMyIsICIxMjNhYWEiLCAiMTIzIiwgImFhYSIsICJhIDEiCgkJfTsKCQlSZWdleCByID0gbmV3IFJlZ2V4KCJbQS1aYS16XStbMC05XSsiKTsKCQlmb3JlYWNoIChzdHJpbmcgcyBpbiBkYXRhKSB7CgkJCUNvbnNvbGUuV3JpdGVMaW5lKCJ7MH0gLSB7MX0iLCBzLCByLklzTWF0Y2gocykpOwoJCX0KCX0KfQ==