Sets/M,N,L/Map(MxN,L) and Map(M,Map(N,L))/Bijection/Exercise

Let ${}M,N,L$ denote sets. Define a bijection between

$\operatorname {Map} \,{\left(M\times N,L\right)}\,\,{\text{ and }}\,\,\operatorname {Map} \,{\left(M,\operatorname {Map} \,{\left(N,L\right)}\right)}.$

Create a solution