#include <bits/stdc++.h> using namespace std; string s1,s2,s3; int main() { getline(cin,s1); int len=s1.size(); s2 = s1; s3 = s1; cout<<s1<<endl; for(int i=0;i<len;i++){ if(s2[i]>='A'&&s2[i]<='Z'){ s2[i] = ' '; } } cout<<s2<<endl; for(int i=0;i<len;i++){ if(s3[i]>='a'&&s3[i]<='z'){ s3[i] = ' '; } } cout<<s3; return 0; }