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#include <stdio.h>
#include <string.h>
#define MAXLINE 1024
int
get_line(char s[], int lim)
{
int c, i;
i = 0;
while (--lim > 0 && (c = getchar()) != EOF && c != '\n') {
s[i++] = c;
}
if (c == '\n') {
s[i++] = c;
}
s[i] = '\0';
return i;
}
int strindex(char s[], char t[])
{
int i, j, k;
for (i = 0; s[i] != '\0'; ++i) {
for (j = i, k = 0; t[k] != '\0' && s[j] == t[k]; ++j, ++k);
if (k > 0 && t[k] == '\0') {
return i;
}
}
return -1;
}
int strrindex(char s[], char t[])
{
int i, j, k;
for (i = strlen(s) - 1; i > 0; --i) {
for (j = i, k = strlen(t) - 1; k > 0 && s[j] == t[k]; --j, --k);
if (t[k] == t[0]) {
return i;
}
}
return -1;
}
int
main()
{
char line[MAXLINE];
char pattern[] = "ould";
int found = 0;
while (get_line(line, MAXLINE)) {
if (strrindex(line, pattern) >= 0) {
printf("%s", line);
++found;
}
}
return found;
}
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