enum M{M;System z;int b,i,j,k,l=1,m=1;{for(;m<2;l=i>0?l:b>17?k=l:b/2!=0?m=~b/17:-b*m)try{b=z.in.read()-44;i=b%15<4?(j-=i*l)*0:i*10+b-4;if(b<-1){z.out.println(j*k);j=0;}}catch(Exception e){}}}
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