Count "co_e" Occurrences

Background

Dawei is studying string pattern matching problems.

Problem Description

Return the number of times that the string "code" appears anywhere in the given string, except we'll accept any letter for the 'd', so "cope" and "cooe" count.

Input Format

Input is given from Standard Input in the following format.

A single line containing a string $s$.

Output Format

Output is to Standard Output in the following format.

A single line containing an integer, representing the number of occurrences of the pattern.

Sample

aaacodebbb

1

codexxcode

2

cozexxcope

2

Sample Explanation

Sample 1: In the string "aaacodebbb\