public class GFG {

	static void maxRepeating(String str)
	{
		int len = str.length();
		int count = 0;
        int max = -1;
        char c = '-';
        int temp[] = new int[str.length()];
	    for(int i = 0; i < str.length(); i++) {
	        temp[i] = 1;
	    }

		for (int i=1; i<len; i++)
		{
		    if(str.charAt(i) == str.charAt(i-1)) {
			    temp[i] = temp[i-1] + 1;
			    if( temp[i] > max){
			        max = temp[i];
			        c = str.charAt(i);
			    }
			}
		}

 		System.out.println(c + " : " + c + " count= " + max);
// 		for(int i = 0; i < str.length(); i++) {
// 	        System.out.println( str.charAt(i) + " : " + temp[i]);
// 	    }
// 	    System.out.println("  ");
	}


	public static void main(String args[])
	{

		String str = "aabcddbbbea";
        maxRepeating(str);
	}
}