3 hydrogencarbonate(in) + Na(+)(in) => 3 hydrogencarbonate(out) + Na(+)(out)
3 hydrogencarbonate(in) + na(+)(in) => 3 hydrogencarbonate(out) + na(+)(out)
3 hydrogencarbonate(in) + Na(+)(in) => 3 hydrogencarbonate(out) + Na(+)(out)
3 hydrogencarbonate(in) + na(+)(in) => 3 hydrogencarbonate(out) + na(+)(out)