public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int cases = sc . nextInt ( ) ;
  for ( int caseNum = 1 ;
  caseNum <= cases ;
  caseNum ++ ) {
    int N = sc . nextInt ( ) ;
    int M = sc . nextInt ( ) ;
    int K = sc . nextInt ( ) ;
    if ( N == 1 || M == 1 ) {
      System . out . println ( "Case #" + caseNum + ": " + K ) ;
      continue ;
    }
    int answer = 2 * N + 2 * M - 4 ;
    for ( int stones = 2 * N + 2 * M - 5 ;
    stones > 0 ;
    stones -- ) {
      int newEnclosed = Math . max ( temp ( M , N , stones ) , temp ( N , M , stones ) ) ;
      if ( newEnclosed >= K ) {
        answer = stones ;
      }
      else {
        break ;
      }
    }
    System . out . println ( "Case #" + caseNum + ": " + answer ) ;
  }
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int cases = sc . nextInt ( ) ; for ( int caseNum = 1 ; caseNum <= cases ; caseNum ++ ) { int N = sc . nextInt ( ) ; int M = sc . nextInt ( ) ; int K = sc . nextInt ( ) ; if ( N == 1 || M == 1 ) { System . out . println ( " Case ▁ # " + caseNum + " : ▁ " + K ) ; continue ; } int answer = 2 * N + 2 * M - 4 ; for ( int stones = 2 * N + 2 * M - 5 ; stones > 0 ; stones -- ) { int newEnclosed = Math . max ( temp ( M , N , stones ) , temp ( N , M , stones ) ) ; if ( newEnclosed >= K ) { answer = stones ; } else { break ; } } System . out . println ( " Case ▁ # " + caseNum + " : ▁ " + answer ) ; } }
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