def calc(S, t):
    if S == "A":
        return t - 1, X[0] - t + 1
    elif S == "B":
        return t - 1, X[1] - t + 1
    else:
        return t - 1, X[2] - t + 1

X = list(map(int, input().split()))
S0, t0 = input().split()
S1, t1 = input().split()
t0, t1 = int(t0), int(t1)
ds1, dsN = calc(S0, t0)
dg1, dgN = calc(S1, t1)
ans = 10 ** 18
if S0 == S1:
    ans = abs(t0 - t1)

d = min(X)
ans = min(ans, ds1 + dg1 + 1)
ans = min(ans, dsN + dgN - 1)
ans = min(ans, ds1 + d + dgN)
ans = min(ans, dsN + d + dg1)
print(ans)
# print(ans, ds1, dg1, dsN, dgN)