The sum of the 3rd and 4th year students at Mina's school is 531. There are 31 more 4th year students than 3rd year students, and 22 more 3rd year boys than 3rd year girls. Find the number of boys in 3rd grade.
531 31 [OP_SUB] 2 [OP_DIV] 22 [OP_SUB] 2 [OP_DIV] 22 [OP_ADD]
var_a = 531
var_b = 31
var_c = var_a - var_b
var_d = 2
var_e = var_c / var_d
var_f = 22
var_g = var_e - var_f
var_h = 2
var_i = var_g / var_h
var_j = 22
var_k = var_i + var_j
print(int(var_k))