Two thermo flasks of volume Vx and Vy are filled with liquid water at an initial temperature of 0^oC. After sometime the temperature were found to be 9x, 9y, respectively. Given that $\frac{Vx}{Vy}$ = 2 and $\frac{\theta x}{\theta y}$ = $\frac{1}{2}$ the ratio of the heat flow into the flask is

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