\includegraphics{https://static.e-olymp.com/content/a6/a6c51c1f72225bf570f77807c122a8a9841662c1.jpg} There once was a champion of \textit{WoW} \textit{Arthasdk} the name he was bestowed He \textit{Death Gripped} you to his side His \textit{Chains of Ice} stopped your stride And \textit{Obliterates} made you say "OWW!" But one day our hero got puzzled His \textit{Death Grip} totally zzled In his darkest despair He could barely hear "OMG NOOB u \textit{Chains of Iced} than u \textit{Death Gripped}" \InputFile You are given a recording of the abilities our hero used in his battles. The first line of input will contain a single integer \textbf{n} (\textbf{1} ≤ \textbf{n} ≤ \textbf{100}), the number of battles our hero played. Then follow \textbf{n} lines each with a sequence of \textbf{k_i} (\textbf{1} ≤ \textbf{k_i} ≤ \textbf{1000}) characters, each of which are either '\textbf{C}', '\textbf{D}' or '\textbf{O}'. These denote the sequence of abilities used by our hero in the \textbf{i}-th battle. '\textbf{C}' is \textit{Chains of Ice}, '\textbf{D}' is\textit{ Death Grip} and '\textbf{O}' is \textit{Obliterate}. \OutputFile Output the number of battles our hero won, assuming he won each battle where he did not \textit{Chains of Ice} immediately followed by \textit{Death Grip}.