import java.util.*;
import java.lang.*;
import java.util.*;
import java.util.regex.*;
 
class Main
{
    private static final Pattern pattern = Pattern.compile("^((.+)_[^_]+)_([^_]+)$");
 
    public static List<String> split(String input) {
        final Matcher matcher = pattern.matcher(input);
        if (!matcher.matches()) {
            return null;
        }
        return Arrays.asList(matcher.group(1), matcher.group(2), matcher.group(3));
    }
 
	public static void main (String[] args)
	{
        System.out.println(split("S1_T1_VIEW"));
        System.out.println(split("S1_T1_C1_DELETE"));
	}
}

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