Start in the roof at the left arete, climb the ledge of that one without convention (6c) or using a crimp (7a, "Kikinatov") and exit at the angle as for Rince-Mi.
NB: a 7a eliminate version of this old problem has been rediscovered by Marc Lehner and Julien Gasc with the name "Kikitanov". It is also possible to start from the step to the right of the character "I" via a horizontal traverse (same grade).