The sum of 7 consecutive natural numbers is 63. Find the third number.
63 0 7 1 [OP_SUB] 1 [OP_LIST_ARANGE] [OP_LIST_SUM] [OP_SUB] 7 [OP_DIV] 3 1 [OP_SUB] [OP_ADD]
var_a = 63
var_b = 0
var_c = 7
var_d = 1
var_e = var_c - var_d
var_f = 1
list_a = [i for i in range(var_b, var_e + 1, var_f)]
list_a = [float(i) for i in list_a]
var_g = sum(list_a)
var_h = var_a - var_g
var_i = 7
var_j = var_h / var_i
var_k = 3
var_l = 1
var_m = var_k - var_l
var_n = var_j + var_m
print(int(var_n))