If the amount of gasoline in the oil canister is 13 milliliters (ml) lighter than 54 liters (L), what is the amount of gasoline in the oil canister in liters (L)?
54 13 1000 [OP_DIV] [OP_SUB]
var_a = 54
var_b = 13
var_c = 1000
var_d = var_b / var_c
var_e = var_a - var_d
print('{:.2f}'.format(round(var_e+1e-10,2)))