If in the quadrilateral $\mathrm{A}\mathrm{B}\mathrm{C}\mathrm{D}$ the angle $\mathrm{A}={78}^{\mathrm{o}}$ and the angle $\mathrm{B}={125}^{\mathrm{o}}$. If the sum of the angles $\mathrm{ADC}$ and $\mathrm{B}\mathrm{C}\mathrm{D}$ is $k°$, then the value of $k$ is