const TABLE: [[u32; 1000]; 1000] = {
	let mut table = [[0u32; 1000]; 1000];
	let mut x = 0;
	while x < 1000 {
		let mut y = 0;
		while y < 1000 {
			table[x as usize][y as usize] = (x % 10 + y % 10) % 10 + (x / 10 % 10 + y / 10 % 10) % 10 * 10 + (x / 100 + y / 100) % 10 * 100;
			y += 1;
		}
		x += 1;
	}
	table
};

fn add(x: u32, y: u32) -> u32 {
	TABLE[x as usize % 1000][y as usize % 1000] + TABLE[x as usize / 1000][y as usize / 1000] * 1000
}

fn main() {
	proconio::input!(A: [u32; 6]);
	
	let mut visited = vec![false; 1000000];
	let mut stack = vec![];
	for &a in &A {
		if !visited[a as usize] {
			visited[a as usize] = true;
			stack.push(a);
		}
	}
	
	while let Some(u) = stack.pop() {
		for &a in &A {
			let v = add(u, a);
			if !visited[v as usize] {
				visited[v as usize] = true;
				stack.push(v);
			}
		}
	}
	
	let count = (0 .. 1000000).filter(|&i| visited[i] ).count();
	println!("{count}");
}