Go: package main

import (
	"bufio"
	"fmt"
	"math"
	"os"
	"strconv"
	"strings"
)

var sc = bufio.NewScanner(os.Stdin)

func Sliceconvtoi() []int {
	strs := strings.Split(sc.Text(), " ")

	var ints []int
	var x int

	for _, s := range strs {
		x, _ = strconv.Atoi(s)
		ints = append(ints, x)
	}

	return ints
}

func main() {
	for sc.Scan() {
		i := Sliceconvtoi()
		fmt.Println(int(math.Log10(float64(i[0]+i[1]))) + 1)
	}

}

C++: #include<stdio.h>
int main(void)
{
	int a,s,d;
	while(scanf("%d %d",&a,&s)!=EOF){
	d=a+s;
	if(d>=0&&d<=9){
		printf("1\n");
	}
	else if(d>=10&&d<=99){
		printf("2\n");
	}
	else if(d>=100&&d<=999){
		printf("3\n");
	}
	else if(d>=1000&&d<=9999){
		printf("4\n");
	}
	else if(d>=10000&&d<=99999){
		printf("5\n");
	}
	else if(d>=100000&&d<=999999){
		printf("6\n");
	}
	else if(d>=1000000){
		printf("7\n");
	}
	}
	return 0;
}

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

int main(){

	int a, b;
	while( cin >> a >> b ){
		a = a+b;
		b = 1;

		while(a>1){
			a /= 10;
			b++;
		}
		cout << b << endl;
	}

	return 0;
}

C++: #include <iostream>
#include <cmath>
using namespace std;
int main() {
	int a, b;
	cin >> a >> b;
	a += b;
	a = (int)log10((double)a) + 1;

	cout << a << endl;

	return 0;
}

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

int main()
{
	int a,b,c;
	cin >>a >>b;
	c = a+b;
	int ret = 1;
	for(int i=1;;i++){
		if( c/10 >=1 ){
			ret++;
         c /= 10;
		}else{
			break;
		}
	}
	cout <<ret <<endl;
    
	return 0;
}

C++: #include <iostream>

using namespace std;

int main()
{
    int respuesta, digitos[200];
    int a, b, i=0;
    while (cin>>a>>b){
    digitos[i]=1;
    respuesta=a+b;
    while (respuesta>=10){
    respuesta=respuesta/10;
    digitos[i]++;}
    i++;
    }
    for (int j=0;j<i;j++){
    cout<<digitos[j]<<endl;}

    return 0;
}

C++: #include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <map>
using namespace std;

#define REP(i,n) for(int i=0;i<n;++i)
#define rep(n) REP(i,n)

int main()
{
	int hills[10];
	rep(10) cin>>hills[i];

	sort( hills, hills+10, greater<int>() );

	rep(3) cout<<hills[i]<<endl;

	return 0;
}

C++: #include <iostream>
int main()
{
	int a;
	int b;
	while(std::cin >> a >> b)
	{
		int number = 1;
		int data = a + b;
		for(int i = 0;;i++)
		{
			if(data / 10 != 0)
			{
				number += 1;
				data /= 10;
			}

			else if(data / 10 == 0)
			{
				break;
			}
		}
		std::cout << number << '\n';
	}
}

C++: #include<bits/stdc++.h>
#include<vector>
#include<list>
#include<stack>
#include<queue>
#include<algorithm>
using namespace std;


int main(){
    int a,b;
    while(scanf("%d %d",&a,&b)!=EOF){
        string s=to_string(a+b);
        printf("%d\n",s.size());
    }
    return 0;
}

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

int main(){
	int a,b,c;
	int ans;
	bool flg;
	int cnt=-1;
	
	while(cin>>a>>b){
		cnt++;flg=false;
		//-----test-----
		switch(cnt){
		case 0:
			if(!(950000<a)) flg=true; 
			break;
		}
		
		if(flg) break;
		
		//--------------
		c=a+b;
		ans=1;
		while(10<=c){
			c/=10;
			ans++;
		}
		cout<<ans<<endl;
	}
	
	return 0;
}

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

int main(){
    long long a,b;
    while(cin >> a >> b;){
    long long sum = a + b;
    string str = to_string(sum);
    cout << str.length()<<endl;}
}

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

int main()
{
	int a, b;
	stringstream ss;
	string sum;
	cin >> a>>b;
	ss << a + b;
	sum = ss.str();

	cout << sum.size() << endl;

	return 0;
}

C++: #include <stdio.h>
#include <iostream>

int main(){
  int a, b, c;
  int i = 10;
  int num = 1;
  
  while(scanf("%d", &a)!=EOF){
    scanf("%d", &b);
    c = a + b;
    while(1){
      if(c/i!=0){
        num++;
        i *= 10;
      }else{
        break;
      }
    }
    std::cout << num << std::endl;
  }
  
  return 0;
  
}

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

using namespace std;

int main() {
  int a, b;
  while (cin >> a >> b) {
    string s = to_string(a + b);
    cout << s.size() << endl;
  }
}

C++: #include<iostream>
using namespace std;
int main(){
  int m;
  int m1=0,m2=0,m3=0;
  for(int i=0;i<10i++){
    cin << m << endl;
    if(m1>m){
      m3 = m2;     
      m2 = m1;     
      m1 = m;
    }
    else if(m2>m){
      m3 = m2;   
      m2 = m;
    }
    else if(m3>m){
      m3 = m;
    }
  }
  cout << m1 << endl << m2 << endl << m3 <<endl;
  return 0;
}

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

int check_digit(int num) {
  int digit = 0;
  while (true) {
    num /= 10;
    digit++;
    if (num <= 0) {
      break;
    }
  }
  return digit;
}

int digit_count(int a, int b) {
  int digit;
  digit = check_digit(a + b);
  return digit;
}

int main(int argc, char const *argv[]) {
  int a, b;
  list<int> ls;
  while (!(std::cin >> a >> b).eof()) {
    ls.push_back(digit_count(a, b));
  }

  list<int>::iterator it = ls.begin();
  while (it != ls.end()) {
    cout << *it << endl;
    it++;
  }
}

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

int main(){
    int a,b,c,i;
	for(int j=0;j<250;j++){
		cin >> a >> b;
		if(a==0 && b==0)break;
		c = a+b;
		for(i=1;true;i++){
			c = c/10;
			if(c==0)break;
		}
		cout << i << endl;
	}

    
    return 0;
}

C++: #include <iostream>
int main(){
	int a,b,c;
	std::cin>>a>>b>>c;
	if(a*a==b*b+c*c){
		std::cout<<"YES"<<std::endl;
		}
	else if(b*b==a*a+c*c){
		std::cout<<"YES"<<std::endl;
		}
	else if(c*c==a*a+b*b){
		std::cout<<"YES"<<std::endl;
		}
	else std::cout<<"NO"<<std::endl;

	
		
	 return 0;
	}

C++: #include <iostream>
#include <stdio.h>
#include <vector>
#include <algorithm>

#define REP(i,n) for(int i = 0;i<(int)n;i++)
#define FOR(i,a,b) for(int i = (a);i < (b);i++)
#define RFOR(i,a,b) for(int i = (a);i>(b);i--)

using namespace std;

int main(void){
    
    int number1,number2;
    int counter = 0;
    
        cin >> number1 >> number2;
        cout << (((number1+number2) /10))+1 << endl;

    return 0;


}

C++: #include<iostream>
using namespace std;
int main(){
    int a[1000000],b[1000000];
    for(int i=0;i<200;i++){
        cin>>a[i]>>b[i];
        if(a[i]+b[i]<10){
            cout<<"1"<<endl;
        }
        else if(a[i]+b[i]<100){
            cout<<"2"<<endl;
        }
        else if(a[i]+b[i]<1000){
            cout<<"3"<<endl;
        }
        else if(a[i]+b[i]<10000){
            cout<<"4"<<endl;
        }
        else if(a[i]+b[i]<100000){
            cout<<"5"<<endl;
        }
        else if(a[i]+b[i]<1000000){
            cout<<"6"<<endl;
        }
        else if(a[i]+b[i]==1000000){
            cout<<"7"<<endl;
        }
    }
    return 0;
}

C++: #include "bits/stdc++.h"

using namespace std;

int main() {
  int a, b;
  while (cin >> a >> b) {
    int digit = log10(a + b) + 1;
    cout << digit << endl;
  }
}

C++: #include<iostream>
using namespace std;
int main()
{
	int a,b,z,ans;
	while(1){
		cin >> a >> b ;
		ans = a+b;
		z = 0;
		while(1){
			z++;
			if(ans / 10 == 0){
				break;
			}
			ans = ans / 10;
		}
		cout << z << endl;
	}
	return 0;
}

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

template<class T>
T input()
{
	T val;
	std::cin >> val;
	return val;
}

int main()
{
	for (int i = 0; i < 200; ++i){
		int hoge = input<int>() + input<int>();
		std::cout << static_cast<int>(log10(hoge)) + 1 << std::endl;
	}
	return 0;
}

C++: #include<iostream>
#include<cstdio>
#include<cmath>
#include<algorithm>
using namespace std;
int main()
{
    int n,m;
    while(cin>>n>>m)
    {
        int i=n+m;
        int d=0;
        while(i>0)
        {
            i/=10;
            d++;
        }
        cout<<d<<endl;
    }
    return 0;
}

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