Go: // 九九を出すだけ
package main
import (
	"fmt"
	"os"
	"bufio"
	"strconv"
)

var sc = bufio.NewScanner(os.Stdin)
var out = bufio.NewWriter(os.Stdout)

func main(){
	sc.Split(bufio.ScanWords)
	defer out.Flush()
	for sc.Scan(){
	    s := nextIntIs()
	    sc.Scan()
	    t := nextIntIs()
        a := len(strconv.Itoa(s+t))
	    fmt.Fprintln(out, a)
	}
}

func next() string{
	sc.Scan()
	return sc.Text()
}

func nextInt() int{
	a, _ := strconv.Atoi(next())
	return a
}

func nextIntIs() int{
	a, _ := strconv.Atoi(sc.Text())
	return a
}

Python: #!/usr/bin/env python3

import collections
import sys

def read_prob():
    inputs = []
    try:
        while True:
            line = input().strip().split()
            a, b = line[0], line[1]
            inputs.append(int(a) + int(b))
    except EOFError:
        pass
    return inputs

if __name__ == '__main__':
    inputs = read_prob()
    for inp in inputs:
        answer = len(str(inp))
        print(answer)

Python: import sys

while True:
    line = sys.stdin.readline()
    if not line:
        break
    token = list(map(int, line.strip().split()))
    print(len(str(token[0] + token[1])))

Python: data_set_count = 3
data_set = []
for _ in range(data_set_count):
    data_set.append(list(map(int, input().split())))

for i in range(data_set_count):
    data = data_set[i][0] + data_set[i][1]
    print(len(str(data)))

Python: import sys
for x in sys.stdin:
	s = x.split()
	a,b = int(s[0]), int(s[1])
	print(len(str(a+b)))

Python: while True:
    try:
        a, b = map(int,input().split())
        s = str(a + b)
        print(len(s))
    except EOFError:
        break

Python: import sys,math

inputs = list()

for n in sys.stdin:
    inputs.append(list(map(int,n.split())))

for n in inputs:
    print(math.floor(math.log10(n[0]*n[1]))+1)

Python: answers=[]
while True:
    try:
        nums=input().split()
        answers.append(len(nums[0])+len(nums[1]))
    except:
        break

for i in range(len(answers)):
    print(answers[i])

C++: #include<iostream>
#include<cstdio>
using namespace std;
int main(){
 
  int a,b;
  while(1){
	  scanf("%d %d",&a,&b);
  int i = 0;
  a = a + b;
  while(a > 0){
    a = a / 10;
    i++;
      }
 
  cout << i << endl;
 
  }



}

C++: #include <iostream>
using namespace std;

int main(){
	
	int a,b;
	while(cin>>a>>b){
		int c=0;
		a+=b;
		for(;a>0;a/=10)c++;
		cout<<c<<endl;
	}
	
	return 0;
}

C++: #include <bits/stdc++.h>
#include <stdlib.h>
#define INF 114514810
#define FOR(i, r, n) for(int i=(r); i<(n); i++) 
#define REP(i, n) FOR(i, (0), n)
template<typename T>
void remove(std::vector<T>& vector, unsigned int index)
{
	vector.erase(vector.begin() + index);
}

using namespace std;

int n=0, a, b;

int main(){
	while (cin >> a >> b){
		a += b;
		while (a > 0)
		{
			n++;
			a /= 10;
		}
		cout << n << endl;
		n = 0;
	}
}

C++: #include <bits/stdc++.h>
using namespace std;

int main(){
	cout << "Hello, world!" << endl;
}

C++: #include <stdio.h>
#include <math.h>
#include <iostream>
using namespace std;

int main(void){
	int a,b,dig,i;
	double sum;
	while(1){
		std::cin >> a >> b;
		if(a=='EOF') break;
		sum = (double)a+(double)b;
		dig = floor(log(sum)/log(10.0));
		std::cout << dig+1 << "\n";
	}
	return 0;
}

C++: #include <iostream>

using namespace std;

int main() {
	int a[500], b[500],sum[500],d[500],k[500];
	int i = 0;
	k[500] = 0;
	while (1) {
		cin >> a[i] >> b[i];
		sum[i] = a[i] + b[i];
		while (!sum[i]) {
			sum[i] /= 10;
			k[i]++;
		}
		if (a[i] == 0 && b[i] == 0)break;
		i++;
	}
	while (!k[i]) {
		cout << k[i] << endl;
	}
	return 0;
}

C++: /*
C++ ???????????????????????????????????¬??????
??????AOJ-ITP1??????????????????
*/
#define _USE_MATH_DEFINES

#include <iostream> // ?¨??????\??????
#include <fstream>  // ??????????????\??????
#include <string>   // ???????????¢???
#include <vector>   // ???????????????
#include <cmath>    // ??°??????
#include <iomanip>  // stream???????????¢???
#include <algorithm>// max??¢??°??????

using std::cin;
using std::cout;
using std::endl;
using std::string;
using std::vector;        // ????´???°????????????????????????
using std::fixed;         // ???????????????????¨???????????????????????????????
using std::setprecision;  // ?????°????°???°?????\???????????°????????????????????¨????????\???

int main() {
	int a, b, c;
	int count;
	while (cin >> a >> b)
	{
		// ??\???
		c = a + b;
		count = 0;

		// ?????°??????
		do
		{
			c = c / 10;
			count++;
		} while (c > 0);
		cout << count << endl;
	}

	return 0;
}

C++: #include<stdio.h>
int main(){
  int a,b;
  int cnt=0;
  int i;
  for(i=0;i<200;i++){
    scanf("%d %d",&a,&b);
    a+=b;
    while(a!=0){
      cnt++;
      a/=10;
    }
    printf("%d\n",cnt);
    cnt=0;
  }
  return 0;
}

C++: #include <iostream>
#include <string>

int main() {
    long long int a, b;

    while (std::cin >> a >> b) {
        std::cout << std::to_string(a + b).size() << std::endl;
    } 

    return 0;
}

C++: #include<string>
#include<algorithm>
#include<iostream>
#include<cstdio>
using namespace std;
int main()
{
	int a,b;
	cin >> a>>b;
string stream ss;
string ss;
  ss << a+b;
   string x=ss.str();
cout<<x.size()<<endl;
return 0;
}

C++: #include <algorithm>
#include <vector>
#include <math.h>
#include <stdio.h>
#include <cctype>
#include <iostream>
#include <set>
#include <string>
#include <queue>
#include <map>
using namespace std;
int size(string x){
	string::size_type size=x.size();
	return size;
}
#define fu(l,k) for(int i=l;i<k;i++)
#define fd(l,k) for(int i=l;i>k;i--)
#define fi first
#define se second
typedef  vector<string> vs;
typedef  vector<int> vi;
double pi(){
	return M_PI;
}
typedef set<int> set_i;
typedef set<string> set_s;
int main(){
	int a,b,ans[201]={},i=0;
	while(cin>>a>>b){
		int q;
		q=a+b;
		while(1){
			if(q/10!=0){
				ans[i]++;
				q=q/10;
			}
			else break;
		}
		cout<<ans[i]+1<<endl;
		i++;
	}
}

C++: #include<iostream>
#include<stdio.h>
using namespace std;
int main(){

    int a,b;
    while(scanf("%d %d",&a,&b)!=EOF)
    {
        a=a+b;
        int sum=0;
        while(a!=0)
        {
            sum++;
            a=a/10;
        }
        printf("%d\n",sum);

    }

    return 0;
}

C++: #include <iostream>
using namespace std;

int main()
{
	int a,b,sum;
	int count = 1;
	
	cin >> a >> b;

	sum = a + b;

	sum = sum / 10;

	while(sum >= 1){

		sum = sum / 10;
		count++;
	}

	cout << count << endl;
		

	return 0;
}

C++: #include <iostream>
using namespace std;

int main(){
	int a,b,c;
	int ans;
	int cnt=-1;
	
	while(cin>>a>>b){
		cnt++;
		//-----test-----
		if(a<1500) break;
		
		//--------------
		c=a+b;
		ans=1;
		while(10<=c){
			c/=10;
			ans++;
		}
		cout<<ans<<endl;
	}
	
	return 0;
}

C++: #include <cstdio>
using namespace std;
int a,b;
int cnt,ans;
int count(int s){
  if(s/10==0) return cnt;
  else {
    cnt++;
    count(s/10);
  }
}
int main(){
  while(scanf("%d %d",&a,&b)){
    cnt=1;
    ans=count(a+b);
    printf("%d\n",ans);
  }
  return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;
typedef long long LL;
#define REP(i,N) for(int i = 0; i < (int)N; i++)

int main(){
	int hako[200][2];
	int i=0;
	int b;
	while(cin >> b){
		hako[i][0] = b;
		cin >> hako[i][1];
		i++;
	}
	REP(j,i){
		int a=0;
		int sum = hako[j][0] + hako[j][1];
		while(sum > 0) sum/10,a++;
		cout << a <<endl;
	}
	return 0;
}

C++: #include<iostream>

using namespace std;

int main(){
  int a,b;
  while(1){
    float c;
    cin >> a >> b;
    a+=b;
    if(cin.eof())break;
    for(;a/10.0>0.0;c++){
      a%=10;
    }
    cout << c << endl;
  }

  return 0;
}

C++: #include <iostream>

using namespace std;

int main(){
	int n, m, dig;
    while(cin >> n >> m){
        dig = 0;
        n += m;
        while(n){
            n /= 10;
            dig++;
        }
        cout << dig << endl;
    }
}