#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ cout<<" \\ "<<endl<<" \\\\\\ "<<endl<<" \\\\\\\\\\ "<<endl<<" \\\\\\ "<<endl<<" \\ "; return 0; }