x, y, z = map(int, input().split())
s_line, s_num = input().split()
e_line, e_num = input().split()
s_num = int(s_num)
e_num = int(e_num)

if s_line == e_line:
    print(abs(s_num - e_num))
else:
    # Determine X (start line) and Y (end line) parameters
    if s_line == 'A':
        x_end = x
        a = s_num
    elif s_line == 'B':
        x_end = y
        a = s_num
    else:  # 'C'
        x_end = z
        a = s_num
    
    if e_line == 'A':
        y_end = x
        b = e_num
    elif e_line == 'B':
        y_end = y
        b = e_num
    else:  # 'C'
        y_end = z
        b = e_num
    
    # Calculate all options
    option1 = (a - 1) + (b - 1) + 1  # Via first hubs
    option2 = (x_end - a) + (y_end - b) + 1  # Via end hubs
    min_len = min(x, y, z)
    option3 = (a - 1) + (y_end - b) + min_len + 1  # Via X's first -> Z's first -> Z's end -> Y's end
    option4 = (x_end - a) + (b - 1) + min_len + 1  # Via X's end -> Z's end -> Z's first -> Y's first
    
    # Find the minimal cost
    min_cost = min(option1, option2, option3, option4)
    print(min_cost)