040000 tree d7540a3aa58f914dd903eaf418b54855a76ec0f2	combinatorics
040000 tree 5db170485a93434d9c0322566b8a6d7cd12e69b5	electrodinamica
040000 tree 52958f4a248c7f3a983fb518f774947e1b3f79de	galois
100644 blob dfa8f4c20485852e3fac20b5a64e2e5899212426	hw_preamble.tex