MOD = 10**9+7

def count_gold_placements(n, markings):
dp = [[0, 0] for _ in range(n+1)]
dp[0][1] = 1
for i in range(1, n+1):
if markings[i-1] == '<':
dp[i][0] = dp[i-1][1]
dp[i][1] = dp[i-1][1]
elif markings[i-1] == '=':
dp[i][0] = dp[i-1][0]
dp[i][1] = dp[i-1][1]
elif markings[i-1] == '>':
dp[i][0] = dp[i-1][0]
dp[i][1] = dp[i-1][1]
elif markings[i-1] == 'o':
dp[i][0] = dp[i-1][0]
dp[i][1] = (dp[i-1][0] + dp[i-1][1]) % MOD
elif markings[i-1] == '.':
dp[i][0] = dp[i-1][0] * 2 % MOD