Minyoung is 7 years old this year. When Minyoung's grandmother turns 65 in the year Minyoung turns 10, how old is her grandmother this year?
65 10 7 [OP_SUB] [OP_SUB]
var_a = 65
var_b = 10
var_c = 7
var_d = var_b - var_c
var_e = var_a - var_d
print(int(var_e))