public static void main ( String args [ ] ) {
  Scanner scan = new Scanner ( System . in ) ;
  int t = scan . nextInt ( ) ;
  while ( t -- > 0 ) {
    String s = scan . next ( ) ;
    int n = s . length ( ) ;
    char [ ] a = s . toCharArray ( ) ;
    int one = 0 ;
    int zero = 0 ;
    for ( int i = 0 ;
    i < n ;
    i ++ ) {
      if ( a [ i ] == '0' ) {
        ++ zero ;
      }
      else {
        ++ one ;
      }
    }
    int c = 0 ;
    int k = 0 ;
    int res = 1000000000 ;
    for ( int i = 0 ;
    i < n ;
    i ++ ) {
      if ( a [ i ] == '1' ) {
        ++ c ;
      }
      else {
        ++ k ;
      }
      res = Math . min ( res , one - c + k ) ;
    }
    c = 0 ;
    k = 0 ;
    for ( int i = 0 ;
    i < n ;
    i ++ ) {
      if ( a [ i ] == '0' ) {
        ++ c ;
      }
      else {
        ++ k ;
      }
      res = Math . min ( res , zero - c + k ) ;
    }
    System . out . println ( res ) ;
  }
}

public static void main ( String args [ ] ) { Scanner scan = new Scanner ( System . in ) ; int t = scan . nextInt ( ) ; while ( t -- > 0 ) { String s = scan . next ( ) ; int n = s . length ( ) ; char [ ] a = s . toCharArray ( ) ; int one = 0 ; int zero = 0 ; for ( int i = 0 ; i < n ; i ++ ) { if ( a [ i ] == '0' ) { ++ zero ; } else { ++ one ; } } int c = 0 ; int k = 0 ; int res = 1000000000 ; for ( int i = 0 ; i < n ; i ++ ) { if ( a [ i ] == '1' ) { ++ c ; } else { ++ k ; } res = Math . min ( res , one - c + k ) ; } c = 0 ; k = 0 ; for ( int i = 0 ; i < n ; i ++ ) { if ( a [ i ] == '0' ) { ++ c ; } else { ++ k ; } res = Math . min ( res , zero - c + k ) ; } System . out . println ( res ) ; } }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (type_identifier) name: (identifier) dimensions: (dimensions))) 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)))) (while_statement condition: (parenthesized_expression (binary_expression left: (update_expression (identifier)) right: (decimal_integer_literal))) body: (block (local_variable_declaration type: (type_identifier) 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: (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))) (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: (array_access array: (identifier) index: (identifier)) right: (character_literal))) consequence: (block (expression_statement (update_expression (identifier)))) alternative: (block (expression_statement (update_expression (identifier))))))) (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))) (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: (array_access array: (identifier) index: (identifier)) right: (character_literal))) consequence: (block (expression_statement (update_expression (identifier)))) alternative: (block (expression_statement (update_expression (identifier))))) (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (binary_expression left: (binary_expression left: (identifier) right: (identifier)) right: (identifier)))))))) (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal))) (expression_statement (assignment_expression left: (identifier) right: (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 (if_statement condition: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (character_literal))) consequence: (block (expression_statement (update_expression (identifier)))) alternative: (block (expression_statement (update_expression (identifier))))) (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (binary_expression left: (binary_expression left: (identifier) right: (identifier)) right: (identifier)))))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier))))))))