23 人解决，31 人已尝试。
26 份提交通过，共有 97 份提交。
4.9 EMB 奖励。
单点时限: 2.0 sec
内存限制: 256 MB
Write a program to read four lines of upper case (i.e., all CAPITAL LETTERS) text input (no more than 72 characters per line) from the input file and print a vertical histogram that shows how many times each letter (but not blanks, digits, or punctuation) appears in the all-upper-case input. Format your output exactly as shown.
23 人解决，31 人已尝试。
26 份提交通过，共有 97 份提交。
4.9 EMB 奖励。