#!/usr/bin/env python
# coding: utf-8
"""
purpose
"""


def main() -> None:
    """
    main function
    """
    (A, B, C, X, Y) = map(int, input().strip().split())

    if 2 * C <= B and 2 * C <= A:
        ans = (max(X, Y) * 2) * C
    elif 2 * C > A:
        ans = Y * 2 * C + max(X - Y, 0) * B
    elif 2 * C > B:
        ans = X * 2 * C + max(Y - X, 0) * A
    else:
        raise ValueError(f"{A}, {B}, {C}")

    print(ans)


if __name__ == "__main__":
    main()
