#include<iostream> #include<iomanip> #include<string> #include<algorithm> #include<math.h> using namespace std; int main(){ char a[100]; scanf("%s",&a); for(int i=0;a[i]!='\0';i++){ if((a[i]>='a'&&a[i]<='z')||(a[i]>='A'&&a[i]<='Z')){ printf("%c",a[i]); } } return 0; } |
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