International trade without tariff, total producer surplus? would it be on market cleaning price?

Domestic Market for Good X PWT Pw Consider the domestic market for Good X in Country A, graphed above. Po=$2, P1=$8, P2=$6, P3=$7, P*=$5, Pw=$3, Pw.T=$4, Q1=50, Q2=100, Q3=200, Q4=250, and Q*=150. The world market outside country A observes a price Pw for Good X. The government can potentially impose a $1 per unit tariff on Good X, identified above by PW. T. When international trade is allowed without the tariff imposed, what is the total producer surplus? (Do not include the dollar sign $ in your answer)