Launch starts with an initial velocity \textbf{V} (m/s) and moves in straight lines with constant acceleration \textbf{A} (m/s^2). Which account meter path will be performed for the first time, less of a given \textbf{T} (s) ? \InputFile Set three real numbers \textbf{A, V, T} through the gap. \OutputFile Output one integer - the desired value.