A farmer has 5 fields. In the first field, he planted 3 rows of 7 apple trees each. In the second field, he planted 4 rows of 6 apple trees each. In the third field, he planted 5 rows of 8 apple trees each. In the fourth field, he planted 3 rows of 9 apple trees each. In the fifth field, he planted 2 rows of 10 apple trees each. Calculate the total number of apple trees the farmer planted across all fields. Then, if he decides to plant 20 more apple trees in a new field, how many apple trees will he have in total? Let's think step by step and output the final answer within \boxed{}.
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