public static void main ( String [ ] args ) {
  Scanner s = new Scanner ( System . in ) ;
  int h = s . nextInt ( ) ;
  int w = s . nextInt ( ) ;
  s . nextLine ( ) ;
  int n = s . nextInt ( ) ;
  int [ ] arr = new int [ n ] ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    arr [ i ] = s . nextInt ( ) ;
  }
  int x = 0 , y = 0 ;
  int turn = 0 ;
  int [ ] [ ] move = {
    {
      1 , 0 }, {
        - 1 , 0 }
      };
      int [ ] [ ] d = new int [ h ] [ w ] ;
      for ( int i = 0 ;
      i < n ;
      i ++ ) {
        while ( arr [ i ] != 0 ) {
          arr [ i ] -- ;
          d [ x ] [ y ] = i + 1 ;
          x += move [ turn % 2 ] [ 0 ] ;
          y += move [ turn % 2 ] [ 1 ] ;
          if ( x < 0 || y < 0 || x == h || y == w ) {
            turn ++ ;
            y ++ ;
            x += move [ turn % 2 ] [ 0 ] ;
            y += move [ turn % 2 ] [ 1 ] ;
          }
        }
      }
      for ( int i = 0 ;
      i < h ;
      i ++ ) {
        for ( int j = 0 ;
        j < w ;
        j ++ ) {
          if ( j == 0 ) System . out . print ( d [ i ] [ j ] ) ;
          else System . out . print ( " " + d [ i ] [ j ] ) ;
        }
        System . out . println ( ) ;
      }
    }
    
public static void main ( String [ ] args ) { Scanner s = new Scanner ( System . in ) ; int h = s . nextInt ( ) ; int w = s . nextInt ( ) ; s . nextLine ( ) ; int n = s . nextInt ( ) ; int [ ] arr = new int [ n ] ; for ( int i = 0 ; i < n ; i ++ ) { arr [ i ] = s . nextInt ( ) ; } int x = 0 , y = 0 ; int turn = 0 ; int [ ] [ ] move = { { 1 , 0 } , { - 1 , 0 } } ; int [ ] [ ] d = new int [ h ] [ w ] ; for ( int i = 0 ; i < n ; i ++ ) { while ( arr [ i ] != 0 ) { arr [ i ] -- ; d [ x ] [ y ] = i + 1 ; x += move [ turn % 2 ] [ 0 ] ; y += move [ turn % 2 ] [ 1 ] ; if ( x < 0 || y < 0 || x == h || y == w ) { turn ++ ; y ++ ; x += move [ turn % 2 ] [ 0 ] ; y += move [ turn % 2 ] [ 1 ] ; } } } for ( int i = 0 ; i < h ; i ++ ) { for ( int j = 0 ; j < w ; j ++ ) { if ( j == 0 ) System . out . print ( d [ i ] [ j ] ) ; else System . out . print ( " ▁ " + d [ i ] [ j ] ) ; } System . out . println ( ) ; } }
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(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))))) (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: (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)) 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: (array_type element: (integral_type) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (array_initializer (array_initializer (decimal_integer_literal) (decimal_integer_literal)) (array_initializer (unary_expression operand: (decimal_integer_literal)) (decimal_integer_literal))))) (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: 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(assignment_expression left: (identifier) right: (array_access array: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) index: (decimal_integer_literal)))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (binary_expression left: (identifier) right: (identifier))) right: (binary_expression left: (identifier) right: (identifier)))) consequence: (block (expression_statement (update_expression (identifier))) (expression_statement (update_expression (identifier))) (expression_statement (assignment_expression left: (identifier) right: (array_access array: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) index: (decimal_integer_literal)))) (expression_statement (assignment_expression left: (identifier) right: (array_access array: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) index: (decimal_integer_literal)))))))))) (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 (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (array_access array: (array_access array: (identifier) index: (identifier)) index: (identifier))))) alternative: (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (string_literal) right: (array_access array: (array_access array: (identifier) index: (identifier)) index: (identifier))))))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list)))))))