#include<iostream> #include<cstring> #include<cmath> #include<cstdio> using namespace std; int main(){ char s1[31],s2[31],s3[31]; char *p1,*p2,*p3; cin.getline(s1,31); for(p1=s1,p2=s2,p3=s3;*p1!='\0';p1++,p2++,p3++) *p2=*p1,*p3=*p1; *p2='\0',*p3='\0'; for(p2=s2;*p2!='\0';p2++) { if(*p2>='A' && *p2<='Z') *p2=' '; } for(p3=s3;*p3!='\0';p3++) { if(*p3>='a' && *p3<='z') *p3=' '; } cout<<s1<<endl<<s2<<endl<<s3<<endl; return 0; }