$701 \overset{1}{-} 345 \overset{2}{-} 89 \overset{3}{+} 158 = 425$
1) $\snippet{name: op_column, sign: '-', x: '701', y: '345', z: '356'}$;
2) $\snippet{name: op_column, sign: '-', x: '356', y: '89', z: '267'}$;
3) $\snippet{name: op_column, sign: '+', x: '267', y: '158', z: '425'}$.
 
$701 \overset{2}{-} (345 \overset{1}{-} 89) \overset{3}{+} 158 = 603$
1) $\snippet{name: op_column, sign: '-', x: '345', y: '89', z: '256'}$;
2) $\snippet{name: op_column, sign: '-', x: '701', y: '256', z: '445'}$;
3) $\snippet{name: op_column, sign: '+', x: '445', y: '158', z: '603'}$.
 
$701 \overset{2}{-} 345 \overset{3}{-} (89 \overset{1}{+} 158) = 109$
1) $\snippet{name: op_column, sign: '-', x: '701', y: '345', z: '356'}$;
2) $\snippet{name: op_column, sign: '+', x: '89', y: '158', z: '247'}$;
3) $\snippet{name: op_column, sign: '-', x: '356', y: '247', z: '109'}$.
 
$701 \overset{3}{-} (345 \overset{1}{-} 89 \overset{2}{+} 158) = 287$
1) $\snippet{name: op_column, sign: '-', x: '345', y: '89', z: '256'}$;
2) $\snippet{name: op_column, sign: '+', x: '256', y: '158', z: '414'}$;
3) $\snippet{name: op_column, sign: '-', x: '701', y: '414', z: '287'}$.