Some trees lose 1 meter (m) of growth each year. If a tree's full growth is 91 meters (m), find the length the tree grew in the first year.
91 2 [OP_MUL] 1/2 [OP_POW] 1 [OP_FLOOR]
var_a = 91
var_b = 2
var_c = var_a * var_b
var_d = 0.5
var_e = var_c ** var_d
var_f = 1
var_g=int((var_e//(10**(var_f-1)))*10**(var_f-1))

print(int(var_g))