Jan has two jobs during 2015. One employer withheld and paid FICA taxes on $70,000 of Jan's

Question:

Jan has two jobs during 2015. One employer withheld and paid FICA taxes on $70,000 of Jan's salary, and the other employer withheld and paid FICA taxes on $49,200 in salary paid to Jan. Calculate the amount of Jan's overpayment of FICA taxes that she should claim on her 2015 Form 1040. $_________