cat A
  cat B
    cat C
      cat D
        cat E
          cat F
            cat G
              cat H
                cat I
                  cat J
                    cat K
                      cat L
                        cat M
                          cat N
                            cat O
                              cat P
                                cat Q
                                  cat R
                                    cat S
                                      cat T
                                        cat U
                                          cat V
                                            cat W
                                              cat X
                                                cat Y
                                                  cat Z
                                                    VOOM!!!