$\snippet{name: op_column, sign: '-', x: '608050', y: '45816', z: ' '}$
$\snippet{name: op_column, sign: '-', x: '73000', y: '5682', z: ' '}$
$\snippet{name: op_column, sign: '-', x: '82320', y: '18613', z: ' '}$
$\snippet{name: op_column, sign: '-', x: '608050', y: '45816', z: '562234 '}$
$\snippet{name: op_column, sign: '-', x: '73000', y: '5682', z: '67318 '}$
$\snippet{name: op_column, sign: '-', x: '82320', y: '18613', z: '63707 '}$