Transformer, "EX3-V1/2"

We have two basic transformers with different characteristics: the transformation ratio of the first is 110/32 (maximum amplitudes), that of the second is 110/18. We have a single voltage source of V(t) = 110.COS(100*t) [V]. We want to obtain a voltage of 14[Vmax] by combining the two transformers. Redo the connections to obtain 50[Vmax].
Note: we reason according to the principle of SUBTRACTION or ADDITION, taking into account the polarity of the potential difference arrows and the law of meshes. The vector sum of potential differences is zero. This exercise in the application of basic conventional transformer wiring enables you to understand the operation of step-up or step-down autotransformers, as well as three-phase-diphase, three-phase-hexaphase transformers, etc...