#include<stdio.h>
int main(){
    char ch;
    int word = 0;
    int count = 0;

    while((ch=getchar())!='\n'){
        if(ch == ' ')
            word = 0;
        else if(0 == word){
            count++;
            word = 1;
        }
    }
   
    printf("the numbers of words is: %d", count);
    return 0;
}

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