#include<iostream> using namespace std; int main() { int m,d,x,temp,sum; while(cin>>m) { if(m!=0) { d=1,x=0,sum=0; for(int i=0;i<m;i++) { sum=d+x; temp=x; x=d; d=d+temp; } cout<<sum<<endl; } } return 0 ; } |
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