template 
      
        inline void readInt(T &l = NULL) {    char a;    T res = 0;    int Neg = 1;    for(;;) {        a = getchar();        if(a == '-') Neg = -1;        if(a == ' ' || a == '\n' || a == EOF || a == '\0') {            l = res * Neg;            break;        }        if(a >= '0' && a <= '9') res *= 10, res += a - '0';    }}