public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int n = Integer . parseInt ( sc . next ( ) ) ;
  int t = Integer . parseInt ( sc . next ( ) ) ;
  Map < Integer , Integer > map = new HashMap < Integer , Integer > ( ) ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    int c = Integer . parseInt ( sc . next ( ) ) ;
    int time = Integer . parseInt ( sc . next ( ) ) ;
    if ( time <= t ) {
      map . put ( c , time ) ;
    }
  }
  int min = Integer . MAX_VALUE ;
  for ( Map . Entry < Integer , Integer > entry : map . entrySet ( ) ) {
    min = Math . min ( entry . getKey ( ) , min ) ;
  }
  System . out . println ( min == Integer . MAX_VALUE ? "TLE" : min ) ;
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int n = Integer . parseInt ( sc . next ( ) ) ; int t = Integer . parseInt ( sc . next ( ) ) ; Map < Integer , Integer > map = new HashMap < Integer , Integer > ( ) ; for ( int i = 0 ; i < n ; i ++ ) { int c = Integer . parseInt ( sc . next ( ) ) ; int time = Integer . parseInt ( sc . next ( ) ) ; if ( time <= t ) { map . put ( c , time ) ; } } int min = Integer . MAX_VALUE ; for ( Map . Entry < Integer , Integer > entry : map . entrySet ( ) ) { min = Math . min ( entry . getKey ( ) , min ) ; } System . out . println ( min == Integer . MAX_VALUE ? " TLE " : min ) ; }
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