Вычисли.
$\snippet{name: op_column, sign: '+', x: '29', y: '48', z: ' '}$
$\snippet{name: op_column, sign: '-', x: '74', y: '25', z: ' '}$
$\snippet{name: op_column, sign: '+', x: '36', y: '57', z: ' '}$
$\snippet{name: op_column, sign: '-', x: '81', y: '39', z: ' '}$
$\snippet{name: op_column, sign: '-', x: '72', y: '63', z: ' '}$
$\snippet{name: op_column, sign: '+', x: '29', y: '48', z: '77 '}$
$\snippet{name: op_column, sign: '-', x: '74', y: '25', z: '49 '}$
$\snippet{name: op_column, sign: '+', x: '36', y: '57', z: '93 '}$
$\snippet{name: op_column, sign: '-', x: '81', y: '39', z: '42 '}$
$\snippet{name: op_column, sign: '-', x: '72', y: '63', z: '9 '}$