def solve(s):
    MOD = 1000000007
    n = len(s)

    if "o" not in s:
        if ">" in s and "<" in s:
            return 0
        return pow(2, s.count("."), MOD) - 1

    left_sum = 0
    unknown_count = 0
    total = 0

    for c in s:
        if c == ".":
            unknown_count += 1
        elif c == "o":
            total += pow(2, unknown_count, MOD) - 1
            total %= MOD
            unknown_count = 0
        elif c == "<":
            total += pow(2, unknown_count, MOD) - 1 - left_sum
            total %= MOD
            unknown_count = 0
        elif c == ">":
            left_sum += pow(2, unknown_count, MOD) - 1
            left_sum %= MOD
            unknown_count = 0
        elif c == "=":
            left_sum = total

    return total

t = int(input())
for case in range(1, t + 1):
    s = input().strip()
    result = solve(s)
    print(f"Case #{case}: {result}")