$\snippet{name: op_column, sign: '-', x: '926', y: '180', z: '746'}$
Проверка:
$\snippet{name: op_column, sign: '+', x: '746', y: '180', z: '926'}$
 
$\snippet{name: op_column, sign: '+', x: '258', y: '57', z: '315'}$
Проверка:
$\snippet{name: op_column, sign: '-', x: '315', y: '57', z: '258'}$