#include <stdio.h>
#define MIN 80  // minimum line size to print
#define MAXLINE 4185000

// Print only lines containing more than 80 characters
int getln(char line[], int maxline);

int main(){
    int len;
    char line[MAXLINE];

    while ((len = getln(line, MAXLINE)) > 0)
        if(len > MIN)
            printf("%s",line[MAXLINE]);
}

// getln: read a line into s, return length
int getln(char s[], int lim)
{
    int c, i;

    for (i = 0; i<lim-1 && (c = getchar()) != EOF && c != '\n'; ++i)
        s[i] = c;
    if (c == '\n') {
        s[i] = c;
        ++i;
    }
    s[i] = '\0';
    return i;
}