Univ de Chile - O Higgins

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{"lg_-1":[3,4,1,8],"lg_-1_6":[2,3,1,6],"lg_122":[3,4,1,8],"lg_122_6":[2,3,1,6]}

{"lg_-1":[2,0,6,8],"lg_-1_6":[1,0,5,6],"lg_122":[2,null,6,8],"lg_122_6":[1,null,5,6]}