#include <iostream>
using namespace std;

//HOMEWORK - complete the following functions and test them
//from the main function.

//You are responsible for completing and testing these functions
//sameString, copyString, appendString and reverse.

//The main function should simply call each of these functions 
//using simple test cases to show that the work.


//return the number of char's before the \0
int stringLength(char s[]);

//return true if they have all the same char's before the \0
bool sameString(char s1[], char s2[]);

//assume that the source is a valid c-style string
//assume that the destination is big enough to hold the source
void copyString(char destination[], char source[]);

//append, concatenate 
void appendString(char destination[], char source[]);

//return true if s has the character query
bool contains(char s[], char query);

//return true if s has the string query
bool contains(char s[], char query[]);

void reverse(char s[]);



void main()
{

	char s1[100];
	cin >> s1;

	cout << stringLength(s1) << endl;
	char s2[100];
	//s2 = s1; // bad
	//copyString(s2, s1);
	if(contains(s1,"on"))
	{
		cout << "found it" << endl;
	}

}

int stringLength(char s[])
{
	int i = 0;

	while(s[i] != '\0')
	{
		i++;
	}

	return i;
}

bool contains(char s[], char query)
{
	bool foundQuery = false;

	for(int i = 0;s[i] != '\0' && !foundQuery;i++)
	{
		if(s[i] == query)
		{
			foundQuery = true;
		}
	}

	return foundQuery;
}

bool contains(char s[], char query[], int startIndex)
{
	bool result = true;
	int queryLength =stringLength(query);
	int queryIndex = 0;
	for(int i = startIndex; i < startIndex + queryLength; i++, queryIndex++)
	{
		if(s[i] != query[queryIndex])
		{
			result = false;
		}
		
	}
	return result;
}

bool contains(char s[], char query[])
{
	bool foundQuery = false;
	int length = stringLength(s) - stringLength(query) + 1;

	for(int i = 0;i < length && !foundQuery;i++)
	{
		if(contains(s,query,i))
		{
			foundQuery = true;
		}
	}

	return foundQuery;
}