6 lines
133 B
Awk
6 lines
133 B
Awk
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BEGIN { h = 0; d = 0; a = 0; }
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$1 == "forward" { h+=+$2; d+=+$2*a; }
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$1 == "up" { a-=+$2 }
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$1 == "down" { a+=+$2 }
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END { print h*d }
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