#include<algorithm> #include<iostream> #include<cstring> #include<cmath> #include<iomanip> using namespace std; int main(){ char s1[100],s2[100],s3[100]; cin.getline(s1,100); for(int i=0;i<strlen(s1);i++){ s2[i]=s1[i]; s3[i]=s1[i]; } for(int i=0;i<strlen(s1);i++){ if(s1[i]>='a' && s1[i]<='z') s2[i]=' '; if(s1[i]>='A' && s1[i]<='Z') s3[i]=' '; } cout<<s1<<endl<<s3<<endl<<s2; return 0; }