x,y=[6            ,11]\
,[  48,67           ];s\
 =[   x for         x   \
 in    vars          (  )]\
  ;b=    vars(      )[s[  x[
   0]]]   ;k=      list(  (b.
      __dict__      .keys  (
      ) )) ;g=      getattr(b
            ,k[x[1]*2]);m=g(
            b,k[y[1]+1]);l=g\
            (b              ,k
            [x              [1
          ]*        3]    ); i=\
          g(        b,    k[  x[
            1]        *6]);p   =g\
            (b        ,k[y[0    ]-
              x[0]])  ;a=g(g(b,k
              [x[0]]  )("".join(
              m(    g(b,k[      x[
              0]    //2+x[      1]
              ])    ,(m(          g(
              b,    k[y[          0]
              -1    ])  ,g(b,k[x  [1]+
              y[    1]  +1])([*[  g(b,
            k[        y[0]-1])  (y)]  *3
            ],        [0,x[0],  0]))  ))
          ))  ,"".            join(m(g(b
          ,k  [x[0            ]//2+x[1]]
        ),      (m                  (g
        (b      ,k                  [y
        [0        ]-                1]
        ),        g(                b,
    k[x[1]      +y[1              ]+1]
    )([*[g      (b,k              [y[0
  ]-    1])(      y)  ]*4],[x[0]*-  3,-1
  ,x    [0]*      -2  ,x[0]//2])))  )));
p(i((1/5**.5)*(((1+5**.5)/2)**(i(a[1])+1)-((1
-5**.5)/2)**(i(a[1])+1)))) if l(a)>1 else p(1)

# Rabbits are great to compute fibonnacci numbers
# ASCII art freely inspired from Row - https://www.asciiart.eu/animals/rabbits
# (c) 2023 Mindiell