abcd +ab•cd-97•ab=2010
ab•100+cd+ ab•cd-97•ab=2010
ab(100+cd-97)+cd=2010
ab(cd+3) +cd=2010 +3
ab(cd+3) +cd+3=2013
(cd+3)(ab+1)=2013
(ab+1)(cd+3)=3•11•61
ab si cd sunt numere de 2 cifre
=> (ab+1)(cd+3)=33•61=61•33
ab+1=33 si cd+3=61 => ab=32 si cd=58 => abcd=3258
ab+1=61 si cd+3=33 => ab=60 si cd=30 => abcd=6030
=> 3258+6030=9288
