 var called = -1
function case1($s : String!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!) : Int {
    $called = -1
    return case $s {
       ' A' => { $called = 1; 1; }
        'B' | 'b' => { $called = 1; 2; }
        'C' | ''=> { $called =  4; 3; }
     '  c  um < ' => { $called= 3; 3; }
      else => t;}
    }
}


