#include<bits/stdc++.h> #define ll long long 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<<endl; return 0; }