def g(x):
    return C[3]*x*x*x+C[2]*x*x+C[1]*x+C[0]

def f(x):
    global a, b, c
    return a*x*x+b*x+c

import sys
input = sys.stdin.readline
C = list(map(int, input().split()))
L, R = map(int, input().split())
if L==R:
    print(g(L))
    exit()
# ax^2+bx+c=0
c, b, a = C[1], C[2]*2, C[3]*3
D = b*b-4*a*c
if D<0:
    # 実数解なし
    # 単調
    v = f(L)
    if v>=0:
        # 増加
        l = g(L)
        r = g(R)
        if l<=0 and 0<=r:
            ans = 0
        else:
            if l>0:
                ans = abs(l)
            else:
                ans = abs(r)
    else:
        # 減少
        l = g(L)
        r = g(R)
        if r<=0 and 0<=l:
            ans = 0
        else:
            if l>0:
                ans = abs(r)
            else:
                ans = abs(l)
elif D>0:
    if a==0:
        # 1個
        x = -c/b
        if R<=x:
            # L, R, x
            # 単調
            v = f(L)
            if v>=0:
                # 増加
                l = g(L)
                r = g(R)
                if l<=0 and 0<=r:
                    ans = 0
                else:
                    if l>0:
                        ans = abs(l)
                    else:
                        ans = abs(r)
            else:
                # 減少
                l = g(L)
                r = g(R)
                if r<=0 and 0<=l:
                    ans = 0
                else:
                    if l>0:
                        ans = abs(r)
                    else:
                        ans = abs(l)

        elif x<=L:
            # x, L, R
            # 単調
            v = f(R)
            if v>=0:
                # 増加
                l = g(L)
                r = g(R)
                if l<=0 and 0<=r:
                    ans = 0
                else:
                    if l>0:
                        ans = abs(l)
                    else:
                        ans = abs(r)
            else:
                # 減少
                l = g(L)
                r = g(R)
                if r<=0 and 0<=l:
                    ans = 0
                else:
                    if l>0:
                        ans = abs(r)
                    else:
                        ans = abs(l)

        else:
            # L, x, R
            # L<x
            v = f(L)
            if v>=0:
                # 増加
                l = g(L)
                r = g(x)
                if l<=0 and 0<=r:
                    ans = 0
                else:
                    if l>0:
                        ans = abs(l)
                    else:
                        ans = abs(r)
            else:
                # 減少
                l = g(L)
                r = g(x)
                if r<=0 and 0<=l:
                    ans = 0
                else:
                    if l>0:
                        ans = abs(r)
                    else:
                        ans = abs(l)
            # x<R
            v = f(R)
            if v>=0:
                # 増加
                l = g(x)
                r = g(R)
                if l<=0 and 0<=r:
                    ans = 0
                else:
                    if l>0:
                        ans = min(ans, abs(l))
                    else:
                        ans = min(ans, abs(r))
            else:
                # 減少
                l = g(x)
                r = g(R)
                if r<=0 and 0<=l:
                    ans = 0
                else:
                    if l>0:
                        ans = min(ans, abs(r))
                    else:
                        ans = min(ans, abs(l))

    else:
        # 実数解あり
        x1 = (-b+D**0.5)/(2*a)
        x2 = (-b-D**0.5)/(2*a)
        if x1>x2:
            x1, x2 = x2, x1
        if L<=x1:
            if R<=x1:
                # L, R, x1, x2
                # 単調
                v = f(L)
                w = f(R)
                if v>0 or w>0:
                    # 増加
                    l = g(L)
                    r = g(R)
                    if l<=0 and 0<=r:
                        ans = 0
                    else:
                        if l>0:
                            ans = abs(l)
                        else:
                            ans = abs(r)
                else:
                    # 減少
                    l = g(L)
                    r = g(R)
                    if r<=0 and 0<=l:
                        ans = 0
                    else:
                        if l>0:
                            ans = abs(r)
                        else:
                            ans = abs(l)
            elif x2<R:
                # L, x1, x2, R
                # L<x1
                v = f(L)
                if v>=0:
                    # 増加
                    l = g(L)
                    r = g(x1)
                    if l<=0 and 0<=r:
                        ans = 0
                    else:
                        if l>0:
                            ans = abs(l)
                        else:
                            ans = abs(r)
                else:
                    # 減少
                    l = g(L)
                    r = g(x1)
                    if r<=0 and 0<=l:
                        ans = 0
                    else:
                        if l>0:
                            ans = abs(r)
                        else:
                            ans = abs(l)
                # x1<x2
                mid = (x1+x2)/2
                v = f(mid)
                if v>=0:
                    # 増加
                    l = g(x1)
                    r = g(x2)
                    if l<=0 and 0<=r:
                        ans = 0
                    else:
                        if l>0:
                            ans = min(ans, abs(l))
                        else:
                            ans = min(ans, abs(r))
                else:
                    # 減少
                    l = g(x1)
                    r = g(x2)
                    if r<=0 and 0<=l:
                        ans = 0
                    else:
                        if l>0:
                            ans = min(ans, abs(r))
                        else:
                            ans = min(ans, abs(l))
                # x2<R
                v = f(R)
                if v>=0:
                    # 増加
                    l = g(x2)
                    r = g(R)
                    if l<=0 and 0<=r:
                        ans = 0
                    else:
                        if l>0:
                            ans = min(ans, abs(l))
                        else:
                            ans = min(ans, abs(r))
                else:
                    # 減少
                    l = g(x2)
                    r = g(R)
                    if r<=0 and 0<=l:
                        ans = 0
                    else:
                        if l>0:
                            ans = min(ans, abs(r))
                        else:
                            ans = min(ans, abs(l))
            else:
                # L, x1, R, x2
                # L<x1
                v = f(L)
                if v>=0:
                    # 増加
                    l = g(L)
                    r = g(x1)
                    if l<=0 and 0<=r:
                        ans = 0
                    else:
                        if l>0:
                            ans = abs(l)
                        else:
                            ans = abs(r)
                else:
                    # 減少
                    l = g(L)
                    r = g(x1)
                    if r<=0 and 0<=l:
                        ans = 0
                    else:
                        if l>0:
                            ans = abs(r)
                        else:
                            ans = abs(l)
                # x1<R
                v = f(R)
                if v>=0:
                    # 増加
                    l = g(x1)
                    r = g(R)
                    if l<=0 and 0<=r:
                        ans = 0
                    else:
                        if l>0:
                            ans = min(ans, abs(l))
                        else:
                            ans = min(ans, abs(r))
                else:
                    # 減少
                    l = g(x1)
                    r = g(R)
                    if r<=0 and 0<=l:
                        ans = 0
                    else:
                        if l>0:
                            ans = min(ans, abs(r))
                        else:
                            ans = min(ans, abs(l))

        elif x2<=L:
            # x1, x2, L, R
            # 単調
            v = f(L)
            w = f(R)
            if v>0 or w>0:
                # 増加
                l = g(L)
                r = g(R)
                if l<=0 and 0<=r:
                    ans = 0
                else:
                    if l>0:
                        ans = abs(l)
                    else:
                        ans = abs(r)
            else:
                # 減少
                l = g(L)
                r = g(R)
                if r<=0 and 0<=l:
                    ans = 0
                else:
                    if l>0:
                        ans = abs(r)
                    else:
                        ans = abs(l)
        else:
            if x2<R:
                # x1, L, x2, R
                # L<x2
                v = f(L)
                if v>=0:
                    # 増加
                    l = g(L)
                    r = g(x2)
                    if l<=0 and 0<=r:
                        ans = 0
                    else:
                        if l>0:
                            ans = abs(l)
                        else:
                            ans = abs(r)
                else:
                    # 減少
                    l = g(L)
                    r = g(x2)
                    if r<=0 and 0<=l:
                        ans = 0
                    else:
                        if l>0:
                            ans = abs(r)
                        else:
                            ans = abs(l)
                # x2<R
                v = f(R)
                if v>=0:
                    # 増加
                    l = g(x2)
                    r = g(R)
                    if l<=0 and 0<=r:
                        ans = 0
                    else:
                        if l>0:
                            ans = min(ans, abs(l))
                        else:
                            ans = min(ans, abs(r))
                else:
                    # 減少
                    l = g(x2)
                    r = g(R)
                    if r<=0 and 0<=l:
                        ans = 0
                    else:
                        if l>0:
                            ans = min(ans, abs(r))
                        else:
                            ans = min(ans, abs(l))

            else:
                # x1, L, R, x2
                # 単調
                v = f(L)
                w = f(R)
                if v>0 or w>0:
                    # 増加
                    l = g(L)
                    r = g(R)
                    if l<=0 and 0<=r:
                        ans = 0
                    else:
                        if l>0:
                            ans = abs(l)
                        else:
                            ans = abs(r)
                else:
                    # 減少
                    l = g(L)
                    r = g(R)
                    if r<=0 and 0<=l:
                        ans = 0
                    else:
                        if l>0:
                            ans = abs(r)
                        else:
                            ans = abs(l)

else:
    # 1個
    # 単調
    v = f(L)
    w = f(R)
    if v>0 or w>0:
        # 増加
        l = g(L)
        r = g(R)
        if l<=0 and 0<=r:
            ans = 0
        else:
            if l>0:
                ans = abs(l)
            else:
                ans = abs(r)
    else:
        # 減少
        l = g(L)
        r = g(R)
        if r<=0 and 0<=l:
            ans = 0
        else:
            if l>0:
                ans = abs(r)
            else:
                ans = abs(l)
print(ans)