#include <stdio.h>

#define MAX_LINE_SIZE 1000

int getlength(char str[], int limit);
void copy(char specified_string[], char result_string[]);

void main()
{
    int len, max;
    char max_line[MAX_LINE_SIZE];
    char line[MAX_LINE_SIZE];

    max = 0;
    while ((len = getlength(line, MAX_LINE_SIZE)) > 0)
        if (len > max) {
            max = len;
            copy(line, max_line);
        }
    if (max > 0)
        printf("%s", max_line);
}

int getlength(char str[], int limit)
{
    int linechar, i;

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

void copy(char specified_string[], char result_string[])
{
    int i;

    i = 0;
    while ((result_string[i] = specified_string[i]) != '\0')
        i++;
}