#include <stdio.h> #include <string.h> int main() { char c[100]; int n; gets(c); n=strlen(c); for(int i=0;i<n;++i) { if(c[i]>='a'&&c[i]<='z'||c[i]>='A'&&c[i]<='Z') printf("%c",c[i]); } }
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