Jungkook and Eunji are trying to share pieces of colored paper. When there are 15 pieces of colored paper, how many ways are there to divide them so that Jungkook and Eunji both have at least one piece?
15 2 [OP_SUB] 1 [OP_ADD]
var_a = 15
var_b = 2
var_c = var_a - var_b
var_d = 1
var_e = var_c + var_d
print(int(var_e))