// See precedence table on the C Reference Card for more details
// https://cgi.cse.unsw.edu.au/~dp1092/23T1/resources/cheatsheets/c-qrc.pdf
// Or type
// man 7 operator 
#include <stdio.h>

// Correct version

int main(void){
    int ch;              
    while ((ch = getchar()) != EOF ) {
        printf("Got %d %c\n",ch,ch);
    }

    return 0;
}


// InCorrect version
/*
int main(void){
    int ch;
                     
    while (ch = getchar() != EOF) {
         printf("Got %d %c\n",ch,ch);
    }
    return 0;
}
*/