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