public static void main ( String [ ] args ) throws Exception {
  BufferedReader input = new BufferedReader ( new InputStreamReader ( System . in ) ) ;
  String word = input . readLine ( ) ;
  System . out . println ( word . charAt ( 0 ) + String . valueOf ( word . length ( ) - 2 ) + word . charAt ( word . length ( ) - 1 ) ) ;
}

public static void main ( String [ ] args ) throws Exception { BufferedReader input = new BufferedReader ( new InputStreamReader ( System . in ) ) ; String word = input . readLine ( ) ; System . out . println ( word . charAt ( 0 ) + String . valueOf ( word . length ( ) - 2 ) + word . charAt ( word . length ( ) - 1 ) ) ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (type_identifier) dimensions: (dimensions)) name: (identifier))) (throws (type_identifier)) body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list (object_creation_expression type: (type_identifier) arguments: (argument_list (field_access object: (identifier) field: (identifier)))))))) (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal))) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) right: (decimal_integer_literal))))) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) right: (decimal_integer_literal))))))))))