A sample of hydrogen gas in its ground state is irradiated with photons of $10.2 \mathrm{eV}$ energies. The radiation from the above sample is used to irradiate two other samples of excited ionized $\mathrm{H}{\mathrm{e}}^{+}$ and excited ionized $\mathrm{L}{\mathrm{i}}^{2+}$, respectively. Both the ionized samples absorb the incident radiation. How many spectral lines are obtained in the spectra of $\mathrm{L}{\mathrm{i}}^{2+?}$