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