$\snippet{name: op_column, sign: '-', x: '97', y: '64', z: '33'}$
Проверка:
1) $\snippet{name: op_column, sign: '-', x: '97', y: '33', z: '64'}$;
2) $\snippet{name: op_column, sign: '+', x: '33', y: '64', z: '97'}$.
 
$\snippet{name: op_column, sign: '-', x: '99', y: '70', z: '29'}$
Проверка:
1) $\snippet{name: op_column, sign: '-', x: '99', y: '29', z: '70'}$;
2) $\snippet{name: op_column, sign: '+', x: '29', y: '70', z: '99'}$.
 
$\snippet{name: op_column, sign: '+', x: '57', y: '43', z: '100'}$
Проверка:
1) $\snippet{name: op_column, sign: '-', x: '100', y: '57', z: '43'}$;
2) $\snippet{name: op_column, sign: '-', x: '100', y: '43', z: '57'}$.
 
$\snippet{name: op_column, sign: '-', x: '94', y: '72', z: '22'}$
Проверка:
1) $\snippet{name: op_column, sign: '-', x: '94', y: '22', z: '72'}$;
2) $\snippet{name: op_column, sign: '+', x: '22', y: '72', z: '94'}$.