Twelve jellies, each 18 centimeters (cm) long, were overlapped the same amount to form a round ring. If its circumference is 210 centimeters (cm), how many millimeters (mm) is the overlapping portion of jelly?
18 12 [OP_MUL] 210 [OP_SUB] 10 [OP_MUL]
var_a = 18
var_b = 12
var_c = var_a * var_b
var_d = 210
var_e = var_c - var_d
var_f = 10
var_g = var_e * var_f
print(int(var_g))