Best-fit parameters of the 2014 Mar. 10 (top) and 2014 Apr. 2 (bottom) flares. The diagonal plots are the marginal density distribution of each parameter. The median values of each parameter are represented by the vertical dotted lines in diagonal plots and by a cross in other panels; the vertical dashed lines define the 90% confidence interval (see Table 7 for the exact values). The contours are 68%, 90% and 99% of confidence levels.