currentfilename = "input.txt";
#currentfilename = "testinput.txt"; #example only

f = open(currentfilename, 'r');
myinput = eval(f.read().replace(" ",","));
f.close();

#for i in myinput:
#	print(i);

def NodeAnalysis(License, index):
	NumberOfChilds  = License[index[0]];
	index[0] += 1;
	NumberofEntries = License[index[0]];
	index[0] += 1;
	#print(index, " - this node has ", NumberOfChilds, " and ", NumberofEntries);
	for child in range(NumberOfChilds):
		NodeAnalysis(License, index);
	
	for entry in range(NumberofEntries):
		index[1] += License[index[0]];
		index[0] += 1;
	#print("\tcurrent index ", index[0]);
		

i = [0,0];

NodeAnalysis(myinput, i);
print("input length\t", len(myinput));
print("final index\t", i[0]);
print("part1 answer\t", i[1]);