for i in range(n):
    print(i)

for i in range(n):
    for j in range(n):
        print(i + j)

left, right = 0, n-1
target = 5
while left <= right:
    mid = (left + right) // 2
    if arr[mid] == target:
        break
    elif arr[mid] < target:
        left = mid + 1
    else:
        right = mid - 1

print(n * 10 + 5)