a = array[1];

a[0] = 5;
a[0] += 5;
a[0] += 10;
a[0] += 20;
print a[0];

a[0] = 5;
a[0] -= 5;
a[0] -= -10;
a[0] -= 20;
print a[0];

a[0] = 5;
a[0] *= 2;
a[0] *= 3;
a[0] *= 4;
print a[0];

a[0] = 100;
a[0] /= 2;
a[0] /= 3;
a[0] /= 4;
print a[0];

a[0] = 100;
a[0] %= 120;
a[0] %= 90;
a[0] %= 3;
print a[0];