I correct myself, if I show the second row the validation let me continue even if I dont insert numbers on the second row
I put this on ecuation validation subquestion
(regexMatch("/^([0-9]|[1-8][0-9]|9[0-9]|[1-8][0-9]{2}|9[0-8][0-9]|99[0-9]|1000)$/",P3_SQ001_COL3)) or (regexMatch("/^([0-9]|[1-8][0-9]|9[0-9]|[1-8][0-9]{2}|9[0-8][0-9]|99[0-9]|1000)$/",P3_SQ002_COL3))
And this on the tip
{if((is_empty(P3_SQ001_COL3) or regexMatch("/^([0-9]|[1-8][0-9]|9[0-9]|[1-8][0-9]{2}|9[0-8][0-9]|99[0-9]|1000)$/",P3_SQ001_COL3)), '', 'Please, insert just integers.')}<br>
{if((is_empty(P3_SQ002_COL3) or regexMatch("/^([0-9]|[1-8][0-9]|9[0-9]|[1-8][0-9]{2}|9[0-8][0-9]|99[0-9]|1000)$/",P3_SQ002_COL3)), '', 'Please, insert just integers.')}