public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int h = sc . nextInt ( ) ;
  int w = sc . nextInt ( ) ;
  int [ ] [ ] place = new int [ w ] [ h ] ;
  for ( int j = 0 ;
  j < h ;
  j ++ ) {
    for ( int i = 0 ;
    i < w ;
    i ++ ) {
      place [ i ] [ j ] = sc . nextInt ( ) ;
    }
  }
  int i = 0 ;
  int j = 0 ;
  int ni = 0 ;
  int nj = 0 ;
  int count = 0 ;
  StringBuilder sb = new StringBuilder ( ) ;
  while ( true ) {
    if ( j % 2 == 0 ) {
      if ( i == w - 1 ) {
        ni = i ;
        nj = j + 1 ;
        if ( nj == h ) {
          break ;
        }
      }
      else {
        ni = i + 1 ;
        nj = j ;
      }
    }
    else {
      if ( i == 0 ) {
        ni = i ;
        nj = j + 1 ;
        if ( nj == h ) {
          break ;
        }
      }
      else {
        ni = i - 1 ;
        nj = j ;
      }
    }
    if ( place [ i ] [ j ] % 2 != 0 ) {
      sb . append ( j + 1 ) . append ( " " ) . append ( i + 1 ) . append ( " " ) . append ( nj + 1 ) . append ( " " ) . append ( ni + 1 ) . append ( "\n" ) ;
      place [ i ] [ j ] -= 1 ;
      place [ ni ] [ nj ] += 1 ;
      count ++ ;
    }
    i = ni ;
    j = nj ;
  }
  System . out . println ( count ) ;
  System . out . print ( sb ) ;
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int h = sc . nextInt ( ) ; int w = sc . nextInt ( ) ; int [ ] [ ] place = new int [ w ] [ h ] ; for ( int j = 0 ; j < h ; j ++ ) { for ( int i = 0 ; i < w ; i ++ ) { place [ i ] [ j ] = sc . nextInt ( ) ; } } int i = 0 ; int j = 0 ; int ni = 0 ; int nj = 0 ; int count = 0 ; StringBuilder sb = new StringBuilder ( ) ; while ( true ) { if ( j % 2 == 0 ) { if ( i == w - 1 ) { ni = i ; nj = j + 1 ; if ( nj == h ) { break ; } } else { ni = i + 1 ; nj = j ; } } else { if ( i == 0 ) { ni = i ; nj = j + 1 ; if ( nj == h ) { break ; } } else { ni = i - 1 ; nj = j ; } } if ( place [ i ] [ j ] % 2 != 0 ) { sb . append ( j + 1 ) . append ( " ▁ " ) . append ( i + 1 ) . append ( " ▁ " ) . append ( nj + 1 ) . append ( " ▁ " ) . append ( ni + 1 ) . append ( " \n " ) ; place [ i ] [ j ] -= 1 ; place [ ni ] [ nj ] += 1 ; count ++ ; } i = ni ; j = nj ; } System . out . println ( count ) ; System . out . print ( sb ) ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (type_identifier) dimensions: (dimensions)) name: (identifier))) body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list (field_access object: (identifier) field: (identifier)))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (array_type element: (integral_type) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (array_creation_expression type: (integral_type) dimensions: (dimensions_expr (identifier)) dimensions: (dimensions_expr (identifier))))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (expression_statement (assignment_expression left: (array_access array: (array_access array: (identifier) index: (identifier)) index: (identifier)) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list)))) (while_statement condition: (parenthesized_expression (true)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal))) consequence: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (identifier))) (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (block (break_statement)))) alternative: (block (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) (expression_statement (assignment_expression left: (identifier) right: (identifier)))))) alternative: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (identifier))) (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (block (break_statement)))) alternative: (block (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) (expression_statement (assignment_expression left: (identifier) right: (identifier))))))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (array_access array: (array_access array: (identifier) index: (identifier)) index: (identifier)) right: (decimal_integer_literal)) right: (decimal_integer_literal))) consequence: (block (expression_statement (method_invocation object: (method_invocation object: (method_invocation object: (method_invocation object: (method_invocation object: (method_invocation object: (method_invocation object: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (decimal_integer_literal)))) name: (identifier) arguments: (argument_list (string_literal))) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (decimal_integer_literal)))) name: (identifier) arguments: (argument_list (string_literal))) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (decimal_integer_literal)))) name: (identifier) arguments: (argument_list (string_literal))) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: 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(argument_list (identifier))))))