#include<iostream>
#include<cstdio>
using namespace std;
int main()
{
char c;
char s[100];
int i=0;
while((c=getchar())!='\n')
{
s[i++]=c;
}
s[i]='\0';
cout<<s;
return 0;
}
I2luY2x1ZGU8aW9zdHJlYW0+CiNpbmNsdWRlPGNzdGRpbz4KCnVzaW5nIG5hbWVzcGFjZSBzdGQ7CgppbnQgbWFpbigpCnsKICBjaGFyIGM7CiAgY2hhciBzWzEwMF07CiAgaW50IGk9MDsKICB3aGlsZSgoYz1nZXRjaGFyKCkpIT0nXG4nKQogIHsKICAgIHNbaSsrXT1jOwogIH0KICBzW2ldPSdcMCc7CiAgY291dDw8czsKICByZXR1cm4gMDsKfQ==