#include
#include
using namespace std;
void cutline( void );
string line;
int main()
{
while( getline(cin, line)) {
cutline();
cout << line << endl;
}
return 0;
}
void cutline()
{
int i = line.size();
while( i-- >= 0 )
if( line[i] != ' ' && line[i] != '\t' )
break;
line.resize(++i);
}