A submarine $$S_1$$ is parked at a depth of 200 m in an ocean on earth. Assume oceans exist on Mars. At about what depth a submarine $$S_2$$ has to be parked in an ocean on Mars so that $$S_2$$ will experience same pressure as that of $$S_1$$? Acceleration due to gravity on Mars is $$3.7\,\mathrm{m/s^2}$$. Assume that sea water density on Earth and Mars is same, $$\rho = 1.03 \times 10^3\,\mathrm{kg/m^3}$$.