Context
With $ 20.000,00 few dollars are bought: it serves to save from little to little or to pay for something on time.
For historical reference: a week ago $ 20.000,00 bought US$ 12,60; a month ago, US$ 12,99; over the last 30 days, between US$ 12,59 and US$ 13,02 (daily selling data from argentinadatos.com).
Keep in mind: It is legal and on the record. The actual price depends on the bond, the settlement period and your broker's fees.
The other way around? Come in. MEP dollar a pesos.