array = stringToArray(string);

string char1;
string char2;
string char3;

std::map<char,int> groupingsMap;

for(i = 0, i < arrayLength, i++){
	char1 = array[i];
	for(j = 0, j < arrayLength, j++){
		char2 = array[j];
		for(k = 0, k < arrayLength, k++){
			char3 = array[k];

			string grouping = char1 + char2 + char3;

			if(groupingsMap::find(grouping)){
				groupingsMap[grouping] += groupingsMap[grouping];
			}else{
				groupingsMap[grouping] = 1;
			}
		}
	}
}