$\snippet{name: op_column, sign: '+', x: '51', y: '43', z: ' '}$
$\snippet{name: op_column, sign: '-', x: '62', y: '38', z: ' '}$
$\snippet{name: op_column, sign: '-', x: '94', y: '27', z: ' '}$
$\snippet{name: op_column, sign: '+', x: '37', y: '29', z: ' '}$
$\snippet{name: op_column, sign: '-', x: '80', y: '34', z: ' '}$
$\snippet{name: op_column, sign: '+', x: '51', y: '43', z: '94 '}$
$\snippet{name: op_column, sign: '-', x: '62', y: '38', z: '24 '}$
$\snippet{name: op_column, sign: '-', x: '94', y: '27', z: '67 '}$
$\snippet{name: op_column, sign: '+', x: '37', y: '29', z: '66 '}$
$\snippet{name: op_column, sign: '-', x: '80', y: '34', z: '46 '}$