#include <stdio.h>

#define IN  1
#define OUT 0

/* count lines, words, and characters in user input */
int main()
{
    int c, nl, nw, nc, state;

    state = OUT;
    nl = nw = nc = 0;
    while ((c = getchar()) != EOF) {
        ++nc;
        if (c == '\n')
            ++nl;
        if (c == ' ' || c == '\n' || c == '\t')
            state = OUT;
        else if (state == OUT) {
            state = IN;
            ++nw;
        }
    }
    printf("number of lines: %d\n", nl);
    printf("number of words: %d\n", nw);
    printf("number of chars: %d\n", nc);
}