#include<stdio.h>
#include<ctype.h>
int main(){
    char s[101];
    int isDitonly=1
    scanf("%s",&s);
    for (i=0;s[i]!='\0';i++){
        if (!isdigit(s[i])){
            isDigitonly=0;
            break;
        }
    }
    if (isDigitonly)
    print ("TRUE");
    else
    printf ("FALES");
    return 0;
    
}