Esmeralda invested $$4500$ in two stock plans. On one, the risky plan, she earned $4\%$ annual interest, and on the other, a safer plan, she earned $2\%$ annual interest. If Esmeralda saw a return on her investment of $$156$ last year, how much did she invest in each of the stock plans?

Esmeralda invested $ in the risky plan and $ in the safer plan.