This year, Yuna is 12 years old and her grandmother is 72 years old. When grandmother's age is 7 times Yuna's age, how old is her grandmother?
72 12 [OP_SUB] 7 [OP_MUL] 7 1 [OP_SUB] [OP_DIV]
var_a = 72
var_b = 12
var_c = var_a - var_b
var_d = 7
var_e = var_c * var_d
var_f = 7
var_g = 1
var_h = var_f - var_g
var_i = var_e / var_h
print(int(var_i))