import java.util.*;
import java.io.*;
import java.util.regex.*;
class Ideone
{
public static void main
(String[] args
) {
Pattern pattern = Pattern.compile("x <= \\d+ \\(\\d+, \\d+\\)");
String expectedString
= "x <= 900 (4, 7)"; Matcher m = pattern.matcher(expectedString);
System.
out.
println(m.
matches()); }
}
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