There are two circles A and B. The area of A is 198.4 square centimeters (cm2), and the area of B is 251.1 square centimeters (cm2). When the pi is calculated as 3.1, find the number of centimeters (cm) by subtracting the circumference of A from the circumference of B including the decimal point.
198.4 3.1 [OP_DIV] 1 2 [OP_DIV] [OP_POW] 2 [OP_MUL] 3.1 [OP_MUL] 251.1 3.1 [OP_DIV] 1 2 [OP_DIV] [OP_POW] 2 [OP_MUL] 3.1 [OP_MUL] [OP_SUB] [OP_ABS]
var_a = 198.4
var_b = 3.1
var_c = var_a / var_b
var_d = 1
var_e = 2
var_f = var_d / var_e
var_g = var_c ** var_f
var_h = 2
var_i = var_g * var_h
var_j = 3.1
var_k = var_i * var_j
var_l = 251.1
var_m = 3.1
var_n = var_l / var_m
var_o = 1
var_p = 2
var_q = var_o / var_p
var_r = var_n ** var_q
var_s = 2
var_t = var_r * var_s
var_u = 3.1
var_v = var_t * var_u
var_w = var_k - var_v
var_x = abs(var_w)
print('{:.2f}'.format(round(var_x+1e-10,2)))