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0_0_38523657_25180.cpp:1:214: fatal error: GCC4.9.2/lib/gcc/x86_64-w64-mingw32/4.9.2/include/stdio.h>in: Invalid argument
 #include<stdio.h>int main(){    int n,u,d;    while(scanf("%d%d%d",&n,&u,&d),n)    {        int t=(n-u)/(u-d);        if(t*(u-d)<(n-u)) t++;        t*=2;        t++;        printf("%d\n",t);    }        return 0;}
                                                                                                                                                                                                                      ^
compilation terminated.