$\snippet{name: op_column, sign: '+', x: '762', y: '169', z: '931'}$
Проверка:
1)
$\snippet{name: op_column, sign: '-', x: '931', y: '169', z: '762'}$
2)
$\snippet{name: op_column, sign: '-', x: '931', y: '762', z: '169'}$
 
$\snippet{name: op_column, sign: '-', x: '514', y: '256', z: '258'}$
Проверка:
1)
$\snippet{name: op_column, sign: '+', x: '256', y: '258', z: '514'}$
2)
$\snippet{name: op_column, sign: '-', x: '514', y: '258', z: '256'}$
 
$\snippet{name: op_column, sign: '+', x: '237', y: '447', z: '684'}$
Проверка:
1)
$\snippet{name: op_column, sign: '-', x: '684', y: '237', z: '447'}$
2)
$\snippet{name: op_column, sign: '-', x: '684', y: '447', z: '237'}$
 
$\snippet{name: op_column, sign: '-', x: '834', y: '655', z: '179'}$
Проверка:
1)
$\snippet{name: op_column, sign: '+', x: '179', y: '655', z: '834'}$
2)
$\snippet{name: op_column, sign: '-', x: '834', y: '179', z: '655'}$