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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	char ch;
  5.     scanf("%c", &ch);
  6.     if (ch >= 'A' && ch <= 'Z')
  7.     printf("%c\n", ch);
  8. 	return 0;
  9. }
  10.  
Success #stdin #stdout 0s 5324KB
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stdin
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B
stdout
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B
https://ideone.com/xHs5dQ
language:
C (gcc 8.3)
created:
3 hours ago
visibility:
public

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