Eunji collected 1 piece of red confetti and 9 pieces of green confetti. If she gives 4 pieces of collected confetti to Yuna, find how many pieces are left with Eunji.
1 9 [OP_ADD] 4 [OP_SUB]
var_a = 1
var_b = 9
var_c = var_a + var_b
var_d = 4
var_e = var_c - var_d
print(int(var_e))