#include <stdio.h> main(){ int n; while(scanf("%d",&n)!=EOF){ if(n == 0) break; int a[10000]={0},i,j,k=1,N = 0; for(i =0;;i++){ for(j =0;j<n;j++){ if(a[j] != 0) continue; if(k%3==0){ a[j] = 1; N++; } k++; } if(N == n-1) break; } for(i=0;i<n;i++){ if(a[i]==0){ printf("%d\n",i+1); break; } } } return 0; } |
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