Indefinite Integration

If \(\int \cos ^{\frac{3}{5}} x \cdot \sin ^3 x d x=\frac{-1}{m} \cos ^m x+\frac{1}{n} \cos ^n x+c\), (where \(\mathrm{c}\) is the constant of integration), then \((\mathrm{m}, \mathrm{n})=\)