$\snippet{name: op_column, sign: '-', x: '82', y: '69', z: ' '}$
$\snippet{name: op_column, sign: '+', x: '76', y: '19', z: ' '}$
$\snippet{name: op_column, sign: '-', x: '61', y: '38', z: ' '}$
$\snippet{name: op_column, sign: '+', x: '45', y: '27', z: ' '}$
$\snippet{name: op_column, sign: '-', x: '100', y: '49', z: ' '}$
$\snippet{name: op_column, sign: '-', x: '82', y: '69', z: '13 '}$
$\snippet{name: op_column, sign: '+', x: '76', y: '19', z: '95 '}$
$\snippet{name: op_column, sign: '-', x: '61', y: '38', z: '23 '}$
$\snippet{name: op_column, sign: '+', x: '45', y: '27', z: '72 '}$
$\snippet{name: op_column, sign: '-', x: '100', y: '49', z: '51 '}$