#include <stdio.h>

int main(void) {
    int speed, length;

    printf("What is the observed speed and length of the aircraft? ");
    scanf("%d %d", &speed, &length);

    if (speed > 1100 && length > 52)
        printf("Civilian\n");
    else
        if (speed > 1100)
            printf("Military\n");
        else
            printf("Aircraft type unknown\n");
    return 0;
} //main