Let $a=3 \hat{\imath}+2 \hat{\jmath}+k^{\wedge}, b^{+}=2 \hat{\imath}-\hat{\jmath}+3 k^{\wedge}$ and $c$ be a vector such that $\left(a+b^{+}\right) \times c=2\left(a \times b^{+}\right)+24 \hat{\jmath}-6 k^{\wedge}$ and $(\overrightarrow{\mathrm{a}}-\overrightarrow{\mathrm{b}}+\hat{\mathrm{i}}) \cdot \overrightarrow{\mathrm{c}}=-3$. Then $|\mathrm{c}| 2$ is equal to