The yellow toy is 10th from the left and 7th from the right. How many toys are there if they are placed in a row?
10 7 [OP_ADD] 1 [OP_SUB]
var_a = 10
var_b = 7
var_c = var_a + var_b
var_d = 1
var_e = var_c - var_d
print(int(var_e))