python-algorithm
codeforces 520A - Pangram
무적김두칠
2022. 4. 29. 13:30
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n=int(input())
s=input().lower()
ans=[]
for i in s:
if i not in ans : ans.append(i)
if 26 == len(ans) : print("YES")
else : print("NO")
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cs |
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