static int findNumber ( int n , int m ) {
  int num = ( m - 1 ) * 9 + n ;
  return num ;
}

static int findNumber ( int n , int m ) { int num = ( m - 1 ) * 9 + n ; return num ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (decimal_integer_literal)) right: (identifier)))) (return_statement (identifier))))