$\snippet{name: op_column, sign: '+', x: '38', y: '43', z: ' '}$
$\snippet{name: op_column, sign: '-', x: '92', y: '56', z: ' '}$
$\snippet{name: op_column, sign: '+', x: '24', y: '69', z: ' '}$
$\snippet{name: op_column, sign: '-', x: '72', y: '25', z: ' '}$
$\snippet{name: op_column, sign: '-', x: '100', y: '68', z: ' '}$
$\snippet{name: op_column, sign: '+', x: '38', y: '43', z: '81 '}$
$\snippet{name: op_column, sign: '-', x: '92', y: '56', z: '36 '}$
$\snippet{name: op_column, sign: '+', x: '24', y: '69', z: '93 '}$
$\snippet{name: op_column, sign: '-', x: '72', y: '25', z: '47 '}$
$\snippet{name: op_column, sign: '-', x: '100', y: '68', z: '32 '}$