#include <iostream>
#include<cstring>
using namespace std;

int main()
{
    char  s[201];
    int i=0,j=0;
    cout<<"s=";
    cin.getline(s,201);
    while(j<strlen(s))
    {
        while(s[j]!='\0'&&s[j]!=' ')
            j++;
        if((j-i)%2!=0)
        {
            if(j-i>1)
            {
                strcpy(s+(j-i)/2+i,s+(j-i)/2+1+i);
                i=j;
            }
            else
                i=j=j+1;
        }
        else
        {
            if(j-i>2)
            {
                strcpy(s+(j-i)/2+i-1,s+(j-i)/2+i);
                strcpy(s+i+(j-i)/2-1,s+i+(j-i)/2);
                i=j=j-1;
            }
            else
                i=j=j+1;
        }

    }
    cout<<s;
    return 0;
}