import sys

N = 40


def put(a, r, c):
    if 0 <= r < N and 0 <= c < N and a[r][c] != "P":
        a[r][c] = "."


def connect(a, cells, upper):
    if not cells:
        return
    cells.sort()
    r, c = cells[0]
    for nr, nc in cells[1:]:
        if upper:
            for x in range(c, nc + 1): put(a, r, x)
            for y in range(r, nr + 1): put(a, y, nc)
        else:
            for y in range(r, nr + 1): put(a, y, c)
            for x in range(c, nc + 1): put(a, nr, x)
        r, c = nr, nc
    if upper:
        for x in range(c, N): put(a, r, x)
        for y in range(r, N): put(a, y, N - 1)
    else:
        for y in range(r, N): put(a, y, c)
        for x in range(c, N): put(a, N - 1, x)


def build(m):
    a = [["#"] * N for _ in range(N)]
    switches, exits = [], []
    r = c = 0
    vertical = True

    while True:
        if vertical:
            if r + 2 >= N or c + 3 >= N - 1:
                break
            for y in range(r, r + 3):
                for x in range(c, c + 2):
                    a[y][x] = "."
            switches += [(r, c + 2), (r + 1, c + 2)]
            exits += [(r, c + 3), (r + 1, c + 3)]
            r, c = r + 2, c + 1
        else:
            if r + 3 >= N - 1 or c + 2 >= N:
                break
            for y in range(r, r + 2):
                for x in range(c, c + 3):
                    a[y][x] = "."
            switches += [(r + 2, c), (r + 2, c + 1)]
            exits += [(r + 3, c), (r + 3, c + 1)]
            r, c = r + 1, c + 2
        vertical = not vertical

    for r in range(N):
        for c in range(N):
            if (r in (N - 3, N - 2) or c in (N - 3, N - 2)) and a[r][c] == ".":
                a[r][c] = "P"

    dp = [[0] * N for _ in range(N)]
    dp[0][0] = 1
    for r in range(N):
        for c in range(N):
            if (r or c) and a[r][c] == ".":
                dp[r][c] = (dp[r - 1][c] if r else 0) + (dp[r][c - 1] if c else 0)
    values = [(dp[r - 1][c] if r else 0) + (dp[r][c - 1] if c else 0)
              for r, c in switches]

    chosen = []
    for i in sorted(range(len(values)), key=lambda i: values[i], reverse=True):
        if 0 < values[i] <= m:
            m -= values[i]
            chosen.append(i)
    if m:
        return None

    upper, lower = [], []
    for i in chosen:
        r, c = switches[i]
        a[r][c] = "P"
        put(a, *exits[i])
        (upper if exits[i][0] < exits[i][1] else lower).append(exits[i])
    connect(a, upper, True)
    connect(a, lower, False)
    a[0][0] = a[-1][-1] = "."
    return a


data = list(map(int, sys.stdin.buffer.read().split()))
answer = []
for m in data[1:]:
    grid = build(m)
    answer += ["-1"] if grid is None else [str(N)] + ["".join(row) for row in grid]
print("\n".join(answer))