38 lines
616 B
C++
38 lines
616 B
C++
#include <iostream>
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#include <stdint.h>
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#include <string>
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#define let auto
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typedef size_t usize;
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typedef int32_t i32;
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using namespace std;
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let main() -> i32 {
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let line = string();
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cin >> line;
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let flag = true;
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for (let c: line) {
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switch (c) {
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case 'I':
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case 'O':
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case 'S':
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case 'H':
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case 'Z':
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case 'X':
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case 'N': {
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break;
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}
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default:
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flag = false;
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break;
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}
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}
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cout << (flag ? "YES" : "NO") << endl;
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return 0;
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}
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