\documentclass[11pt]{article}

\usepackage{graphicx}
\usepackage{amsfonts}
\usepackage{amsmath}
\usepackage{amsthm}
\usepackage{latexsym}
\usepackage{longtable}
\usepackage{docmute}
\usepackage[utf8]{inputenc}
\usepackage[T2A]{fontenc}
\usepackage[english,russian]{babel}
\usepackage{misccorr}
\usepackage[a4paper]{geometry}
\usepackage{amsbib}
\usepackage{tikz}
\usepackage{subfigure}
\usepackage{algpseudocode}
\usepackage[section]{algorithm}
\usepackage{pgfplots}
\usepackage[T1]{fontenc}

\geometry{
    layoutheight = 241mm,
    layoutwidth = 171mm,
    layouthoffset = 19.5mm,
    layoutvoffset = 28mm,
    inner = 22mm,
    outer = 22mm,
    top = 18mm,
    bottom = 21mm,
    showcrop
}
\pagenumbering{gobble}
\newtheorem{theorem}{Теорема}
\newtheorem{sled}{Следствие}
\newtheorem{lemma}{Лемма}
\usetikzlibrary{positioning, arrows.meta}
\pgfplotsset{compat = 1.9}
\usepackage{proof}
\usepackage[nottoc]{tocbibind}
