#import sys
#input = sys.stdin.readline
def main():
    x, y, z = map( int, input().split())
    s0, t0 = input().split()
    s1, t1 = input().split()
    t0, t1 = int(t0), int(t1)
    if t0 > t1:
        s0, s1 = s1, s0
        t0, t1 = t1, t0
    if s0 != "A":
        if s0 == s1:
            if s0 == "B":
                x, y = y, x
            else:
                x, z = z, x
            s0 = s1 = "A"
        else:
            if s1 == "B":
                x, z = z, x
            else:
                x, y = y, x
            s0 = "A"
    if s1 == "C":
        y, z = z, y
        s1 = "B"
#    print(x,y,z,s0,t0,s1,t1)
    if s0 == "A":
        if s1 == "A":
            print( min(t1 - t0, t0 + x+1-t1 + min(y-1, z-1)))
        elif s1 == "B":
#            print(  min(t0, x-t0 + z) + t1-1, min(x+1-t0, t0+z) +y-t1)
            print( min( min(t0, x+1-t0 + z) + t1-1, min(x+1-t0, t0+z) +y-t1))
if __name__ == '__main__':
    main()