t = 0
for j in range(len(s)):
x, y, z = 0, 0, 0
for i in range(j, len(s)):
if s[i] == 'O':
x += 1
if s[i] == 'L':
y += 1
if s[i] == 'P':
z += 1
if (x>=3) or (y>=3) or (z>=3):
t += 1