import std.stdio, std.conv, std.string, std.range, std.array, std.algorithm;

int main(){
	auto L = readln().strip().to!int();
	auto M = readln().strip().to!int();
	auto N = readln().strip().to!int();
	
	M+= N/25;
	N = N%25;
	L+= M/4;
	M = M%4;
	L = L%10;
	
	writeln(L+M+N);
	
	return 0;
}