N = int(input())

num: str = "a"
den: str | None = None

ret = []

for idx in range(1, N + 1):
    op, a = input().split()

    var: str = "A[{}]".format(idx)

    if op == "+":
        if not den:
            ret.append(("add", num, var, num))
        else:
            ret.append(("mul", "z", var, den))
            ret.append(("add", num, "z", num))
    elif op == "*":
        ret.append(("mul", num, var, num))
    elif op == "/":
        if not den:
            den = var
        else:
            ret.append(("mul", "c", var, den))
            den = "c"
    else:
        assert False

if den:
    ret.append(("div", "a", num, den))


print(len(ret))
for row in ret:
    print(*row)