#!/usr/bin/env python

CLOCK = 1
X = 1

X_VALUES = []

with open('input') as f:
    for line in f:
        ins, *args = line.rstrip().split(" ")

        if ins == "noop":
            CLOCK += 1
            X_VALUES.append(X)
        elif ins == "addx":
            CLOCK += 2
            X_VALUES.append(X)
            X_VALUES.append(X)
            X += int(args[0])

print(
  (X_VALUES[19] * 20) +
  (X_VALUES[59] * 60) +
  (X_VALUES[99] * 100) +
  (X_VALUES[139] * 140) +
  (X_VALUES[179] * 180) +
  (X_VALUES[219] * 220)
)