Starting function and cc
(6000, 203) 6000
No grid search
por cc function
              precision    recall  f1-score   support

          ao       0.88      0.90      0.89      2709
          br       0.90      0.95      0.92      5000
          cv       0.85      0.67      0.75      2420
          pt       0.91      0.94      0.92      5000

   micro avg       0.89      0.89      0.89     15129
   macro avg       0.89      0.87      0.87     15129
weighted avg       0.89      0.89      0.89     15129

[[2445   83  102   79]
 [  34 4761   74  131]
 [ 236  312 1620  252]
 [  61  151  103 4685]]