x, y, z = map(int, input().split())
S_line, S_num = input().split()
S_num = int(S_num)
T_line, T_num = input().split()
T_num = int(T_num)

if S_line == T_line:
    print(abs(S_num - T_num))
else:
    # Determine s_last and t_last
    s_last = x if S_line == 'A' else y if S_line == 'B' else z
    t_last = x if T_line == 'A' else y if T_line == 'B' else z

    # Option 1: via first stations
    cost1 = (S_num - 1) + 1 + (T_num - 1)

    # Option 2: via last stations
    cost2 = (s_last - S_num) + 1 + (t_last - T_num)

    # Option 3: via next line's first and last
    next_line = {'A': 'B', 'B': 'C', 'C': 'A'}[S_line]
    if next_line == 'A':
        next_first, next_last = 1, x
    elif next_line == 'B':
        next_first, next_last = 1, y
    else:
        next_first, next_last = 1, z
    cost3 = (S_num - 1) + 1 + (next_last - next_first) + 1 + (t_last - T_num)

    # Option 4: via previous line's last and first
    prev_line = {'A': 'C', 'B': 'A', 'C': 'B'}[S_line]
    if prev_line == 'A':
        prev_first, prev_last = 1, x
    elif prev_line == 'B':
        prev_first, prev_last = 1, y
    else:
        prev_first, prev_last = 1, z
    cost4 = (s_last - S_num) + 1 + (prev_last - prev_first) + 1 + (T_num - 1)

    min_cost = min(cost1, cost2, cost3, cost4)
    print(min_cost)