$\snippet{name: op_column, sign: '+', x: '103', y: '479', z: '582'}$
Проверка:
$\snippet{name: op_column, sign: '-', x: '582', y: '479', z: '103'}$
 
$\snippet{name: op_column, sign: '-', x: '919', y: '332', z: '587'}$
Проверка:
$\snippet{name: op_column, sign: '+', x: '587', y: '332', z: '919'}$
 
$\snippet{name: op_column, sign: '+', x: '652', y: '198', z: '850'}$
Проверка:
$\snippet{name: op_column, sign: '-', x: '850', y: '198', z: '652'}$
 
$\snippet{name: op_column, sign: '-', x: '608', y: '434', z: '174'}$
Проверка:
$\snippet{name: op_column, sign: '+', x: '174', y: '434', z: '608'}$