int myaoti (char s[])
{
int i, n;
n = 0;
for(i = 0; s[i] >= '0' && s[i] <= '9'; ++i)
n = n * 10 + (s[i] - '0');
return n;
}
int myaoti (char s[])
{
int i, n;
n = 0;
for(i = 0; s[i] >= '0' && s[i] <= '9'; ++i)
n = n * 10 + (s[i] - '0');
return n;
}