Change form of complex number?

Hello, I have data from a program that outputs one column of complex values. It takes this form:

    -3.94784161958372514789e-012-j6.28318528237456513067e-008
    -4.60520922611340477459e-012-j6.78616917929321520919e-008
    -5.37203701661548294055e-012-j7.32941813034424751869e-008
    -6.26655173065204795790e-012-j7.91615544841966181044e-008
    -7.31001500650640956280e-012-j8.54986248018396261909e-008

Whereas I would like the j to be on the outside for each value, i.e.

-3.94784161958372514789e-012-6.28318528237456513067e-008j

I know I could loop through the data with an if statement, but is there a more elegant/simple way to make this change on a massive data file? Thanks!