5 lines
176 B
Python
5 lines
176 B
Python
#!/usr/bin/env python3
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h,d,a=0,0,0
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for c,s in(x.strip().split()for x in open("input.txt")):v=int(s);h,d,a=(h+v,d+a*v,a)if c[0]=='f'else(h,d,a+(-v if c=='up'else v))
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print(h*d)
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