I am going to make a circle by overlapping the 10.4 centimeters (cm) ticket paper by 3.5 centimeters (cm). If there are 16 tickets, how many centimeters (cm) is the circumference of the circle?
10.4 3.5 [OP_SUB] 16 [OP_MUL]
var_a = 10.4
var_b = 3.5
var_c = var_a - var_b
var_d = 16
var_e = var_c * var_d
print('{:.2f}'.format(round(var_e+1e-10,2)))