row 1 chip 1 is $5 shipped, chips 2 & 3 are $8 each shipped, chip 4 is $12 shipped
row 2 chips 1 & 2 are $8 each shipped, chip 3 is $10 shipped, chip 4 is $5 shipped
row 3 chip 1 is $8 shipped, chip 2 is $3 shipped, chips 3 & 4 are $30 each shipped
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