時刻

1.質問

2.解答

(1)解釈

n = int(input())
cnt = 0
for k in range(n+1):
    for i in range(60):
        for j in range(60):
            if '3' in str(k) or '3' in str(i) or '3' in str(j):
                cnt += 1
                
print(cnt)

(2)解答

n = int(input())
cnt = 0
for k in range(n+1):
    for i in range(60):
        for j in range(60):
            if '3' in str(k) + str(i) + str(j):
                cnt += 1
                
print(cnt)