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mod common;
use common::*;
fn main() {
let mut x: i64 = 1;
let mut cycles: usize = 0;
let mut step: usize = 20;
let mut score: i64 = 0;
let mut line = String::new();
while std::io::stdin().read_line(&mut line).unwrap() > 0 {
let oldx = x;
match read_instruction(&line) {
Instruction::Add(n) => { x += n; cycles += 2; },
Instruction::Noop => { cycles += 1; }
}
if cycles >= step {
score += oldx * (step as i64);
step += 40;
}
line.clear();
}
println!("{score}");
}
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