4 lines
139 B
Python
4 lines
139 B
Python
h,d=0,0
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for c,s in(x.strip().split()for x in open("input.txt")):v=int(s);h,d=(h+v,d)if c[0]=='f'else(h,d+(-v if c=='up'else v))
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print(h*d)
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