# include<stdio.h> # include<string.h> int main(void) { int i; char a[90]; gets(a); for(i=0;i<strlen(a);++i) { if(a[i]>='a'&&a[i]<='z'||a[i]>='A'&&a[i]<='Z') { printf("%c",a[i]); } } return 0; }
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